1898 12 17.37 -99.99 -99.99 
1908 06 33.79  20.01  26.90 
1908 07 33.49  21.15  27.32 
1908 08 33.00  21.56  27.28 
1908 09 30.51  18.17  24.34 
1908 10 25.22   8.93  17.08 
1908 11 23.43   7.04  15.23 
1908 12 21.44   7.35  14.39 
1909 03 24.63  10.57  17.59 
1909 04 26.85  12.84  19.84 
1909 05 30.35  15.22  22.78 
1909 06 34.16  20.09  27.12 
1909 07 33.47  21.67  27.57 
1909 08 33.72  22.20  27.96 
1909 09 31.73  19.09  25.41 
1909 10 28.59 -99.99 -99.99 
1909 12 16.44   2.32   9.38 
1910 01 17.31   3.19  10.25 
1910 02 18.36   3.89  11.12 
1911 07 32.16  20.29  26.22 
1911 08 33.29  22.05  27.67 
1911 09 33.86  21.25  27.55 
1911 10 30.83  15.89  23.36 
1911 11 22.16   6.85  14.50 
1912 03 23.14   9.39  16.27 
1912 04 27.42  13.96  20.69 
1912 05 31.22  17.95  24.59 
1912 06 33.82  18.12  25.97 
1912 07 33.78  21.75  27.76 
1912 10 28.65  15.93  22.29 
1920 06 99.99  20.53 -99.99 
1920 12 17.44   4.41  10.92 
1921 01 20.70   5.93  13.31 
1921 02 21.42 -99.99 -99.99 
1921 03 27.74  13.52  20.63 
1921 05 28.79  16.61  22.70 
1921 06 34.36  21.05  27.70 
1921 08 32.66  21.94  27.30 
1921 09 33.73  22.08  27.90 
1921 10 26.37  12.84  19.60 
1921 11 24.01  10.65  17.33 
1921 12 21.30   6.63  13.96 
1922 01 16.92 -99.99 -99.99 
1922 02 22.28   8.59  15.43 
1922 03 22.68   9.99  16.33 
1922 04 27.50  14.04  20.77 
1922 05 29.75  18.87  24.31 
1922 06 32.91  21.70  27.30 
1922 07 31.97  22.01  26.99 
1922 08 32.41  22.06  27.23 
1922 09 31.43  20.07  25.75 
1922 10 26.63  15.63  21.13 
1922 11 23.52  10.38  16.95 
1922 12 20.85   9.59  15.22 
1923 01 20.45   6.19  13.32 
1923 02 19.37   6.67  13.02 
1923 03 23.04   9.24  16.14 
1923 04 99.99  13.41 -99.99 
1923 05 27.76  17.40  22.58 
1923 06 29.51  21.30  25.40 
1923 07 30.12  21.68  25.90 
1923 08 99.99  22.17 -99.99 
1923 09 31.47  21.03  26.25 
1923 10 26.03  12.94  19.48 
1923 11 20.39   5.57  12.98 
1923 12 99.99   8.87 -99.99 
1924 01 16.00   3.37   9.68 
1924 02 17.74   5.16  11.45 
1924 03 19.37   7.45  13.41 
1924 04 25.85  13.66  19.75 
1924 05 28.86  15.65  22.25 
1924 06 34.16  22.19  28.18 
1924 07 32.48  21.77  27.12 
1924 08 34.79  22.00  28.39 
1924 09 29.64  19.56  24.59 
1924 10 24.57  12.63  18.60 
1924 11 23.13   6.97  15.04 
1924 12 19.11   7.41  13.26 
1925 03 24.79   9.09  16.94 
1925 04 26.95  13.37  20.16 
1925 05 26.91  16.03  21.47 
1925 06 31.53  20.91  26.22 
1925 07 33.53  22.24  27.88 
1925 08 33.00  21.68  27.34 
1925 09 35.59 -99.99 -99.99 
1925 10 28.30  15.22  21.76 
1925 11 20.62   7.47  14.04 
1925 12 15.13   3.21   9.17 
1926 01 15.59   5.56  10.57 
1926 02 20.97   6.42  13.69 
1926 03 19.36   8.18  13.77 
1926 04 23.72  11.66  17.68 
1926 05 29.85  15.46  22.65 
1926 06 32.02  20.45  26.23 
1926 07 32.64  21.42  27.03 
1926 08 31.91  22.38  27.14 
1926 09 32.43  21.47  26.95 
1926 10 27.56  13.84  20.70 
1926 11 19.59   6.27  12.93 
1926 12 20.16   7.75  13.95 
1927 01 17.35   3.55  10.45 
1927 02 23.57  10.72  17.14 
1927 03 22.97   8.67  15.82 
1927 04 29.52  14.20  21.86 
1927 05 32.15  16.71  24.43 
1927 06 34.07  20.64  27.35 
1927 07 34.33  21.95  28.14 
1927 08 33.45  21.27  27.36 
1927 09 33.43  19.19  26.31 
1927 10 28.73  13.23  20.98 
1927 11 24.74   9.63  17.18 
1927 12 17.86   5.07  11.46 
1928 01 17.08   2.21   9.64 
1928 02 17.78   5.82  11.80 
1928 03 22.76  10.83  16.79 
1928 04 24.54  11.27  17.90 
1928 05 29.69  15.68  22.68 
1928 06 32.41  20.54  26.47 
1928 07 32.88  22.58  27.73 
1928 08 99.99  22.20 -99.99 
1928 09 99.99  20.03 -99.99 
1928 10 99.99  15.56 -99.99 
1928 11 20.44   6.44  13.44 
1928 12 18.04   4.67  11.36 
1929 01 19.62   6.79  13.20 
1929 02 99.99   6.44 -99.99 
1929 04 27.83  15.31  21.57 
1929 05 30.57  18.02  24.29 
1929 06 32.45  20.37  26.41 
1929 07 99.99  21.27 -99.99 
1929 08 33.47  21.65  27.56 
1930 01 17.92 -99.99 -99.99 
1930 02 21.94   7.05  14.49 
1930 03 18.90   7.96  13.43 
1930 04 26.41  12.56  19.48 
1930 05 32.58  18.07  25.32 
1930 06 33.43 -99.99 -99.99 
1930 07 34.71  22.48  28.59 
1930 08 33.75  20.71  27.23 
1930 09 32.87  21.26  27.06 
1930 10 99.99  12.14 -99.99 
1930 11 19.87 -99.99 -99.99 
1930 12 13.65   3.62   8.63 
1931 01 16.01   2.85   9.43 
1931 02 19.01   4.32  11.66 
1931 03 99.99   6.14 -99.99 
1931 04 99.99  10.16 -99.99 
1931 05 31.27  15.24  23.25 
1931 06 36.12  19.44  27.78 
1931 07 35.18  22.61  28.89 
1931 08 33.34  21.17  27.25 
1931 09 34.54  20.29  27.42 
1931 10 28.83  15.08  21.95 
1931 11 25.96   9.06  17.51 
1931 12 24.23  12.37  18.29 
1932 01 21.51   8.67  15.09 
1932 02 25.26  11.51  18.38 
1932 03 21.08   6.52  13.80 
1932 04 27.69  12.11  19.90 
1932 05 30.77  16.34  23.55 
1932 06 34.70  21.12  27.91 
1932 07 36.50  23.72  30.11 
1932 08 33.02  22.48  27.75 
1932 09 31.07  20.36  25.71 
1932 10 26.86  12.56  19.71 
1932 11 19.95 -99.99 -99.99 
1932 12 21.22   9.66  15.44 
1933 01 20.31   7.98  14.14 
1933 02 19.95   7.22  13.58 
1933 03 23.94   9.78  16.86 
1933 04 26.33  14.10  20.21 
1933 05 34.13  19.68  26.90 
1933 06 34.57  19.68  27.12 
1933 07 33.97  22.04  28.00 
1933 08 34.40  21.75  28.07 
1933 09 35.28  20.77  28.02 
1933 10 29.89  14.46  22.17 
1933 11 23.11   4.91  14.01 
1933 12 23.97   7.15  15.56 
1934 01 18.24   5.49  11.86 
1934 02 17.52   1.80   9.66 
1934 03 21.42   8.46  14.94 
1934 04 28.21  12.29  20.25 
1934 05 30.04  17.29  23.67 
1934 06 32.41  21.45  26.93 
1934 07 32.74  22.12  27.43 
1934 08 32.40  21.63  27.01 
1934 09 31.77  18.95  25.36 
1934 10 28.55  15.23  21.89 
1934 11 24.24   8.04  16.14 
1934 12 17.75   4.17  10.96 
1935 01 18.21   4.67  11.45 
1935 02 19.45   4.41  11.93 
1935 03 24.94  12.06  18.50 
1935 04 26.94  13.47  20.20 
1935 05 29.93  17.95  23.94 
1935 06 33.45  19.00  26.22 
1935 07 31.15  22.11  26.63 
1935 08 32.16  22.51  27.33 
1935 09 28.71  19.50  24.10 
1935 10 28.75  14.12  21.43 
1935 11 22.58   8.66  15.62 
1935 12 14.50    .91   7.70 
1936 01 16.25   4.48  10.36 
1936 02 16.04   4.69  10.37 
1936 03 23.07  10.16  16.61 
1936 04 25.84  12.88  19.36 
1936 05 31.59  17.74  24.66 
1936 06 32.84  20.58  26.71 
1936 07 33.06  22.21  27.63 
1936 08 31.84  21.91  26.87 
1936 09 32.68  20.76  26.72 
1936 10 28.83  16.11  22.47 
1936 11 22.41   6.54  14.47 
1936 12 17.32   7.10  12.21 
1937 01 23.66  14.15  18.90 
1937 02 19.36   5.70  12.53 
1937 03 21.05   7.10  14.07 
1937 04 25.98  12.23  19.10 
1937 05 32.04  17.73  24.88 
1937 06 34.68  21.25  27.97 
1937 07 34.61  22.10  28.35 
1937 08 34.31  21.78  28.04 
1937 09 30.20  19.45  24.83 
1937 10 25.88  13.14  19.51 
1937 11 19.86   6.44  13.15 
1937 12 17.51   4.07  10.79 
1938 01 18.01   4.48  11.25 
1938 02 22.60   7.22  14.91 
1938 03 27.03  12.02  19.52 
1938 04 27.08  13.44  20.26 
1938 05 32.86  18.09  25.47 
1938 06 33.22  19.66  26.44 
1938 07 33.39  21.69  27.54 
1938 08 35.66  22.49  29.07 
1938 09 31.61  18.71  25.16 
1938 10 27.65  11.34  19.49 
1938 11 24.33   9.12  16.72 
1938 12 18.79   3.25  11.02 
1939 01 20.98   5.23  13.10 
1939 02 22.40   9.47  15.94 
1939 03 24.07  10.47  17.27 
1939 04 26.61  12.68  19.64 
1939 05 29.56  16.08  22.82 
1939 06 32.16  21.59  26.87 
1939 07 33.84  22.00  27.92 
1939 08 31.75  21.47  26.61 
1939 09 32.81  20.41  26.61 
1939 10 28.57  13.69  21.13 
1939 11 21.78   5.90  13.84 
1939 12 19.82   4.25  12.03 
1940 01 11.51  -1.55   4.98 
1940 02 16.79   3.59  10.19 
1940 03 21.55   8.30  14.92 
1940 04 25.96  12.65  19.30 
1940 05 30.68  14.50  22.59 
1940 06 32.45  20.78  26.61 
1940 07 32.56  22.27  27.41 
1940 08 32.93  22.56  27.75 
1940 09 30.80  17.68  24.24 
1940 10 27.81  11.40  19.60 
1940 11 21.59   8.10  14.84 
1940 12 19.78   7.84  13.81 
1941 01 17.69   3.97  10.83 
1941 02 17.96   2.75  10.36 
1941 03 19.59   7.09  13.34 
1941 04 27.87  14.13  21.00 
1941 05 32.34  15.27  23.80 
1941 06 32.91  20.90  26.91 
1941 07 31.86  22.08  26.97 
1941 08 34.00  22.80  28.40 
1941 09 31.52  21.18  26.35 
1941 10 30.20  18.09  24.14 
1941 11 22.63   8.50  15.56 
1941 12 19.18   6.45  12.81 
1942 01 17.04   2.74   9.89 
1942 02 15.08   4.10   9.59 
1942 03 20.20   8.21  14.20 
1942 04 27.31  11.83  19.57 
1942 05 30.48  15.76  23.12 
1942 07 34.25  21.90  28.07 
1942 08 32.73  21.79  27.26 
1942 09 30.70  19.29  25.00 
1942 10 28.13  11.87  20.00 
1942 11 25.59   7.93  16.76 
1942 12 18.78   5.95  12.36 
1943 01 18.12   6.32  12.22 
1943 02 20.06   5.04  12.54 
1943 03 22.01   9.43  15.72 
1943 04 26.36  11.67  19.01 
1943 05 31.64  18.11  24.87 
1943 06 34.09  21.55  27.82 
1943 07 34.25  22.14  28.20 
1943 09 30.52  19.17  24.84 
1943 10 26.62  10.72  18.67 
1943 11 21.86   3.91  12.88 
1943 12 17.81   3.86  10.83 
1944 02 23.53  10.17  16.85 
1944 03 23.51  10.73  17.11 
1944 04 25.48  13.61  19.54 
1944 05 30.25  17.16  23.70 
1944 06 34.75  21.36  28.06 
1944 07 32.07  21.69  26.88 
1944 08 32.73  21.83  27.28 
1944 09 31.65  21.30  26.47 
1944 10 27.58  11.01  19.29 
1944 11 22.29   7.41  14.85 
1944 12 16.68   2.53   9.60 
1945 01 17.44   3.06  10.25 
1945 02 21.23   8.31  14.77 
1945 03 27.28  13.11  20.19 
1945 04 28.57  15.01  21.79 
1945 05 29.89  16.11  23.00 
1945 06 33.39  21.03  27.21 
1945 07 32.04  22.16  27.10 
1945 08 33.00  21.82  27.41 
1945 09 32.50  21.23  26.86 
1945 10 27.47  12.36  19.91 
1945 11 23.34   7.41  15.37 
1945 12 15.97   1.79   8.88 
1946 01 17.53   6.87  12.20 
1946 02 20.17   5.95  13.06 
1946 03 23.82  10.86  17.34 
1946 04 27.98  14.78  21.38 
1946 05 29.26  18.08  23.67 
1946 06 32.03  20.11  26.07 
1946 07 32.84  21.75  27.30 
1946 08 32.33  21.55  26.94 
1946 09 29.99  19.45  24.72 
1946 10 27.82  14.09  20.95 
1946 11 25.23  13.26  19.24 
1946 12 21.74   5.08  13.41 
1947 01 21.45   9.54  15.49 
1947 02 16.92   1.89   9.40 
1947 03 20.02   7.56  13.79 
1947 04 28.34  16.09  22.21 
1947 05 30.27  17.79  24.03 
1947 06 32.41  21.22  26.81 
1947 07 32.84  20.41  26.62 
1947 08 33.14  21.85  27.49 
1947 09 31.47  20.07  25.77 
1947 10 27.95  16.57  22.26 
1947 11 19.85   8.97  14.41 
1947 12 18.04   5.82  11.93 
1948 01 15.22   1.28   8.25 
1948 02 20.51   8.25  14.38 
1948 03 23.02  12.57  17.79 
1948 04 27.87  15.85  21.86 
1948 05 32.00  17.90  24.95 
1948 06 33.57  20.67  27.12 
1948 07 32.24  22.24  27.24 
1948 08 32.00  22.05  27.02 
1948 09 30.02  19.25  24.63 
1948 10 25.23  11.42  18.32 
1948 11 23.80  11.00  17.40 
1948 12 20.14   9.27  14.70 
1949 01 21.02   9.22  15.12 
1949 02 21.79  11.29  16.54 
1949 03 21.56   8.64  15.10 
1949 04 26.13  13.78  19.95 
1949 05 31.43  17.70  24.56 
1949 06 31.78  21.02  26.40 
1949 07 32.43  22.79  27.61 
1949 08 32.37  22.02  27.19 
1949 09 30.81  19.44  25.12 
1949 10 29.36  17.98  23.67 
1949 11 21.41   4.87  13.14 
1949 12 20.20   6.53  13.37 
1950 01 23.82  12.93  18.37 
1950 02 21.89   7.42  14.65 
1950 03 21.15   7.21  14.18 
1950 04 24.21   9.88  17.04 
1950 05 31.83  18.33  25.08 
1950 06 33.12  21.28  27.20 
1950 07 31.51  21.19  26.35 
1950 08 33.62  20.67  27.14 
1950 09 30.23  19.09  24.66 
1950 10 28.16  13.87  21.01 
1950 12 15.64   2.28   8.96 
1951 01 18.77   3.78  11.27 
1951 02 20.37   4.07  12.22 
1951 03 23.27   9.46  16.36 
1951 04 25.08  11.56  18.32 
1951 05 30.00  15.06  22.53 
1951 06 33.09  20.42  26.75 
1951 07 33.36  22.28  27.82 
1951 08 34.40  22.23  28.31 
1951 09 32.23  21.26  26.74 
1951 10 29.37  15.16  22.26 
1951 11 20.80   6.23  13.51 
1951 12 19.91   7.17  13.54 
1952 01 20.43   7.45  13.94 
1952 02 18.68   7.38  13.03 
1952 03 22.10   9.07  15.58 
1952 04 25.35  11.04  18.19 
1952 05 30.46  17.04  23.75 
1952 06 34.74  22.23  28.48 
1952 07 34.47  22.14  28.30 
1952 08 32.25  21.96  27.10 
1952 10 25.33  10.22  17.77 
1952 11 21.79   5.57  13.68 
1953 01 18.94   4.79  11.86 
1953 02 19.12   6.55  12.84 
1953 03 24.90  11.06  17.98 
1953 04 25.22  10.96  18.09 
1953 05 31.55  19.25  25.40 
1953 06 32.27  21.81  27.04 
1953 07 32.65  22.23  27.44 
1953 08 31.85  21.54  26.69 
1953 09 30.65  18.66  24.65 
1953 10 27.41  13.02  20.21 
1953 11 20.97   5.48  13.22 
1953 12 16.91   5.71  11.31 
1954 01 18.64   4.57  11.60 
1954 02 20.92   5.43  13.17 
1954 03 21.24   7.72  14.48 
1954 04 28.61  15.34  21.97 
1954 05 28.39  13.06  20.72 
1954 06 33.63  20.82  27.22 
1954 07 34.14  22.49  28.31 
1954 08 35.43  22.13  28.78 
1954 09 33.52  20.34  26.93 
1954 10 28.19  12.26  20.22 
1954 11 19.91   5.32  12.61 
1954 12 17.61   1.51   9.56 
1955 01 17.67   2.56  10.11 
1955 02 19.71   5.38  12.54 
1955 03 24.80  10.24  17.52 
1955 04 27.88  13.70  20.79 
1955 05 31.92  17.52  24.72 
1955 06 31.91  17.79  24.85 
1955 07 32.70  21.42  27.06 
1955 09 31.96  20.91  26.43 
1955 10 27.17  11.36  19.26 
1955 11 21.42   6.59  14.00 
1955 12 17.70   4.50  11.10 
1956 02 21.59   9.29  15.44 
1956 03 22.55   8.16  15.35 
1956 05 31.26  17.81  24.53 
1956 06 31.35  19.42  25.38 
1956 07 32.05  21.27  26.66 
1956 08 34.04  21.15  27.59 
1956 09 30.18  17.61  23.89 
1956 10 26.86  14.57  20.71 
1956 11 22.13   5.87  14.00 
1956 12 21.99   8.02  15.00 
1957 01 20.95   7.69  14.32 
1957 02 24.12  11.15  17.63 
1957 03 21.54   7.72  14.63 
1957 04 25.70  14.19  19.94 
1957 06 32.03  21.68  26.85 
1957 07 33.59  22.48  28.03 
1957 08 33.31  21.34  27.32 
1957 09 30.22  20.71  25.46 
1957 10 25.08  11.69  18.38 
1957 11 22.54  10.37  16.45 
1957 12 17.95   3.36  10.66 
1958 01 14.08    .37   7.22 
1958 02 13.65    .19   6.91 
1958 03 20.04   9.00  14.52 
1958 04 26.28  13.45  19.86 
1958 05 29.45  17.56  23.50 
1958 06 33.02  21.95  27.48 
1958 07 32.45  22.31  27.38 
1958 08 99.99  21.86 -99.99 
1958 09 31.94  20.59  26.26 
1958 10 26.24  12.94  19.59 
1958 11 23.39   9.17  16.27 
1958 12 16.52   3.90  10.21 
1959 01 16.17   2.47   9.32 
1959 02 19.68   9.62  14.65 
1959 03 19.85   8.42  14.13 
1959 04 25.37  13.04  19.20 
1959 05 31.07  18.07  24.57 
1959 06 31.96  21.54  26.75 
1959 07 33.11  22.42  27.76 
1959 08 33.16  22.17  27.66 
1959 09 30.89  20.54  25.71 
1959 10 27.02  17.69  22.35 
1959 11 21.50   7.86  14.68 
1959 12 17.94   3.95  10.94 
1960 01 16.69   4.06  10.37 
1960 02 17.10   4.09  10.59 
1960 03 18.61   5.98  12.29 
1960 04 26.56  13.95  20.25 
1960 05 29.02  15.54  22.28 
1960 06 32.86  19.74  26.30 
1960 07 33.95  22.77  28.36 
1960 08 32.16  21.70  26.93 
1960 09 31.29  20.52  25.90 
1960 10 28.14  14.79  21.46 
1960 11 23.34   8.99  16.16 
1960 12 15.51    .93   8.22 
1961 01 14.14   1.17   7.66 
1961 02 20.51   7.61  14.06 
1961 03 24.05  10.33  17.18 
1961 04 24.49  10.13  17.31 
1961 05 28.71  15.73  22.22 
1961 06 32.36  19.39  25.87 
1961 07 33.38  21.25  27.31 
1961 08 32.22  21.59  26.90 
1961 09 31.57  19.89  25.73 
1961 10 28.20  10.94  19.57 
1961 11 24.02   9.93  16.97 
1961 12 18.62   4.67  11.65 
1962 01 15.94   3.13   9.53 
1962 02 23.27   8.82  16.04 
1962 03 20.86   7.82  14.34 
1962 04 24.87  11.51  18.19 
1962 05 33.91  17.74  25.82 
1962 06 33.21  20.58  26.89 
1962 07 34.34  22.17  28.25 
1963 02 16.44   2.39   9.41 
1963 03 21.92  10.39  16.15 
1964 02 16.02   1.22   8.62 
1964 03 22.57   8.37  15.46 
1964 04 26.51  12.94  19.72 
1964 05 30.33  15.73  23.03 
1964 06 33.97  19.36  26.66 
1964 07 31.88  21.16  26.52 
1964 08 32.30  21.38  26.84 
1964 09 31.48  19.14  25.31 
1964 10 24.37  11.21  17.79 
1964 11 23.52   9.60  16.56 
1964 12 19.58   5.80  12.69 
1965 01 19.28   3.14  11.21 
1965 02 16.50   4.69  10.60 
1965 03 21.80   7.67  14.73 
1965 04 27.60  13.89  20.74 
1965 05 31.25  15.42  23.33 
1965 06 30.30  19.37  24.84 
1965 07 32.08  21.03  26.55 
1965 08 31.91  21.01  26.46 
1965 09 30.95  20.37  25.66 
1965 10 25.25  12.74  18.99 
1965 11 22.41   9.46  15.93 
1965 12 17.70   3.08  10.39 
1966 01 13.76   2.92   8.34 
1966 02 16.04   3.77   9.91 
1966 03 20.77   7.94  14.35 
1966 04 25.99  11.86  18.92 
1966 05 28.51  17.20  22.85 
1966 06 29.96  18.26  24.11 
1966 07 33.09  21.09  27.09 
1966 08 31.76  20.90  26.33 
1966 09 31.78  18.60  25.19 
1966 10 27.67  15.99  21.83 
1966 11 22.59   7.10  14.84 
1966 12 16.04   2.65   9.34 
1967 01 17.89   4.76  11.32 
1967 02 17.79   3.91  10.85 
1967 03 24.29   9.68  16.98 
1967 04 29.31  14.21  21.76 
1967 05 31.07  13.71  22.39 
1967 06 31.59  19.67  25.63 
1967 07 31.80  20.00  25.90 
1967 08 31.42  20.14  25.78 
1967 09 29.93  16.28  23.10 
1967 10 27.33   8.80  18.06 
1967 11 22.46   5.41  13.93 
1967 12 20.56   7.39  13.97 
1968 01 16.84   2.20   9.52 
1968 02 15.98   -.16   7.91 
1968 03 22.31   4.80  13.55 
1968 04 28.59  13.18  20.88 
1968 09 32.36  16.62  24.49 
1968 10 28.67 -99.99 -99.99 
1968 11 21.33 -99.99 -99.99 
1968 12 20.89  -1.34   9.77 
1969 02 19.54 -99.99 -99.99 
1969 03 19.68   2.65  11.16 
1969 05 29.76  15.25  22.50 
1969 06 35.03  19.69  27.36 
1969 07 33.39  21.66  27.52 
1969 08 33.09  20.65  26.87 
1969 09 31.07  17.57  24.32 
1969 10 27.44  14.82  21.13 
1969 11 21.03   5.51  13.27 
1969 12 18.21   2.03  10.12 
1970 01 12.91    .97   6.94 
1970 02 18.23   1.41   9.82 
1970 03 22.87   8.77  15.82 
1970 04 28.14  14.53  21.33 
1970 05 31.43  15.95  23.69 
1970 06 32.05  19.68  25.86 
1970 07 33.89  21.25  27.57 
1970 08 32.93  21.86  27.39 
1970 10 27.93  14.82  21.37 
1970 12 21.44   4.54  12.99 
1971 09 31.92 -99.99 -99.99 
1971 10 28.79 -99.99 -99.99 
1971 11 22.93 -99.99 -99.99 
1971 12 22.28 -99.99 -99.99 
1972 01 20.88   8.38  14.62 
1972 02 17.33   4.16  10.74 
1972 04 27.11  12.24  19.67 
1972 05 28.54  15.81  22.17 
1972 06 31.80  19.34  25.57 
1972 07 33.27  19.99  26.63 
1972 08 33.91  21.35  27.63 
1972 09 33.23  19.65  26.43 
1972 10 27.94  12.80  20.37 
1972 11 20.98   8.72  14.85 
1972 12 19.85   7.35  13.60 
1973 01 17.26   4.44  10.85 
1973 02 17.11   2.54   9.82 
1973 03 23.92  11.69  17.80 
1973 04 24.80  11.71  18.25 
1973 05 29.31  15.87  22.59 
1973 06 32.63  20.16  26.39 
1973 07 33.65  21.95  27.80 
1973 08 32.84  20.84  26.84 
1973 09 31.72  21.00  26.36 
1973 10 29.04  13.47  21.25 
1973 11 24.74  10.53  17.63 
1973 12 18.26   2.64  10.45 
1974 01 24.04  13.85  18.94 
1974 02 19.71   4.25  11.98 
1974 03 24.81  10.00  17.40 
1974 04 26.41  10.65  18.52 
1974 05 30.79  16.56  23.67 
1974 06 31.91  18.71  25.31 
1974 07 33.27  20.46  26.87 
1974 08 32.34  20.85  26.59 
1974 09 31.29  19.84  25.56 
1974 10 26.88   9.53  18.20 
1974 11 22.96   6.06  14.50 
1974 12 18.73   4.35  11.54 
1975 01 19.62   5.73  12.67 
1975 02 21.82   7.47  14.64 
1975 03 22.15   8.55  15.35 
1975 04 25.31  11.36  18.33 
1975 05 30.91  18.20  24.56 
1975 06 32.54  20.35  26.44 
1975 07 31.42  21.09  26.25 
1975 08 32.31  21.50  26.90 
1975 09 29.72  18.68  24.20 
1975 10 27.53  14.36  20.94 
1975 11 22.54   8.35  15.44 
1975 12 18.20   3.52  10.86 
1976 01 15.86    .15   8.00 
1976 02 22.46   5.40  13.92 
1976 03 24.23  10.79  17.51 
1976 04 27.47  12.28  19.87 
1976 05 27.72  15.35  21.53 
1976 06 31.33  19.09  25.21 
1976 07 33.31  21.26  27.28 
1976 08 33.00  21.17  27.08 
1976 09 30.71  18.64  24.67 
1976 10 23.96   9.67  16.81 
1976 11 17.98   4.34  11.16 
1976 12 16.12   2.21   9.17 
1977 01 12.37  -1.35   5.51 
1977 02 18.07    .54   9.30 
1977 03 23.53  10.86  17.19 
1977 04 28.20  12.32  20.26 
1977 05 32.16  16.90  24.53 
1977 06 35.09  19.79  27.44 
1977 07 34.43  21.73  28.08 
1977 08 32.34  22.11  27.23 
1977 09 32.05  20.99  26.52 
1977 10 26.03  10.51  18.27 
1977 11 22.47   9.50  15.98 
1977 12 17.98   2.98  10.48 
1978 01 12.36    .30   6.33 
1978 02 13.40    .41   6.90 
1978 03 20.99   6.90  13.94 
1978 04 28.14  11.83  19.98 
1978 05 29.93  16.95  23.44 
1978 06 33.02  20.85  26.93 
1978 07 33.18  22.79  27.98 
1978 08 33.24  21.01  27.12 
1978 09 33.55  19.87  26.71 
1978 10 28.03  11.81  19.92 
1978 11 25.65  10.55  18.10 
1978 12 19.78   4.39  12.08 
1979 01 13.89    .41   7.15 
1979 02 16.08   3.18   9.63 
1979 03 23.73   6.71  15.21 
1979 04 27.72  13.60  20.66 
1979 05 29.89  16.24  23.06 
1979 06 32.65  18.92  25.78 
1979 07 33.27  21.64  27.45 
1979 08 33.68  20.83  27.25 
1979 09 30.30  21.13  25.71 
1979 11 23.92  11.22  17.57 
1979 12 18.26   6.34  12.30 
1980 01 18.39   7.33  12.86 
1980 02 16.92   4.50  10.71 
1980 03 22.81  11.53  17.17 
1980 04 25.91 -99.99 -99.99 
1980 05 30.19 -99.99 -99.99 
1980 06 33.65  23.33  28.49 
1980 07 34.99 -99.99 -99.99 
1980 08 34.91 -99.99 -99.99 
1980 09 33.99  22.89  28.44 
1980 10 26.76 -99.99 -99.99 
1980 11 21.51   7.41  14.46 
1980 12 17.98   2.06  10.01 
1981 01 15.17  -1.81   6.68 
1981 02 19.56   5.01  12.28 
1981 03 22.80   6.51  14.65 
1981 04 28.96  13.49  21.22 
1981 05 29.98  14.34  22.16 
1981 06 34.97  21.85  28.41 
1981 07 34.91  22.64  28.77 
1981 08 32.28  21.82  27.05 
1981 09 31.83  17.69  24.76 
1981 10 27.55  12.65  20.09 
1981 11 23.09   6.14  14.61 
1981 12 17.04   2.17   9.60 
1982 01 17.44 -99.99 -99.99 
1982 02 21.24   7.10  14.17 
1982 03 23.62  10.10  16.86 
1982 04 25.53  12.03  18.78 
1982 05 30.79  15.55  23.17 
1982 06 32.65  20.18  26.41 
1982 07 32.05  21.18  26.61 
1982 08 31.83  20.97  26.40 
