1919 07 31.56 -99.99 -99.99 
1919 08 31.46  21.32  26.39 
1919 10 28.89  18.70  23.80 
1919 11 21.17   8.56  14.86 
1921 02 15.90   5.25  10.57 
1921 03 25.31  11.10  18.20 
1921 04 24.63  11.67  18.15 
1921 05 27.36  16.02  21.69 
1921 06 33.52  21.20  27.36 
1921 07 31.68  21.68  26.68 
1921 08 31.93  21.23  26.58 
1921 09 34.37  21.52  27.94 
1921 10 24.73  11.71  18.21 
1921 11 21.00  10.10  15.55 
1921 12 17.71   5.42  11.57 
1922 01 12.83   3.26   8.04 
1922 02 19.12   8.45  13.78 
1922 03 19.76   8.80  14.28 
1922 04 26.62  13.74  20.18 
1922 05 27.53  17.45  22.49 
1922 06 32.02  21.34  26.68 
1922 07 32.09  21.94  27.01 
1922 08 31.03  20.96  25.99 
1922 09 31.04  19.17  25.10 
1922 10 24.65  12.98  18.81 
1922 11 20.39 -99.99 -99.99 
1922 12 17.03 -99.99 -99.99 
1923 01 17.12   4.98  11.06 
1923 02 14.89 -99.99 -99.99 
1923 03 19.75 -99.99 -99.99 
1923 04 23.72  11.88  17.79 
1923 05 25.87  15.57  20.72 
1923 06 29.68  19.66  24.67 
1923 07 31.65  21.17  26.41 
1923 08 32.07  22.12  27.09 
1923 09 30.64  19.41  25.02 
1923 10 24.95  12.07  18.51 
1923 11 17.67   5.46  11.56 
1923 12 17.20 -99.99 -99.99 
1924 01 99.99    .19 -99.99 
1924 02 13.78   2.97   8.37 
1924 03 16.67   5.67  11.17 
1924 04 23.27  11.76  17.51 
1924 05 26.71  15.09  20.90 
1924 06 32.49  21.40  26.94 
1924 07 31.81  21.44  26.62 
1924 08 34.21  22.01  28.11 
1924 09 26.88  17.64  22.25 
1924 10 23.63  11.04  17.33 
1924 11 20.11   6.94  13.52 
1924 12 14.97   4.55   9.76 
1925 01 13.54   3.79   8.66 
1925 02 17.99   6.48  12.23 
1925 03 21.62   8.47  15.05 
1925 04 27.20  13.75  20.47 
1925 05 28.14  15.79  21.96 
1925 06 32.89  21.28  27.08 
1925 07 33.62  22.27  27.94 
1925 08 33.95  21.45  27.70 
1925 09 36.65  22.53  29.59 
1925 10 25.00  14.08  19.54 
1925 11 16.87   5.88  11.37 
1925 12 12.96   2.77   7.86 
1926 01 11.69   2.81   7.25 
1926 02 16.31   5.17  10.74 
1926 03 15.07   4.56   9.81 
1926 04 23.54  10.48  17.01 
1926 05 28.26  15.75  22.00 
1926 06 30.97  20.21  25.59 
1926 07 31.45  20.78  26.11 
1926 08 32.05  22.47  27.25 
1926 09 31.17  20.93  26.05 
1926 10 26.18  13.55  19.86 
1926 11 17.45   4.92  11.19 
1926 12 17.06   5.08  11.07 
1927 01 15.01   3.28   9.14 
1927 02 20.32   9.72  15.02 
1927 03 19.53   9.07  14.30 
1927 04 26.94  13.91  20.42 
1927 05 29.69  17.04  23.36 
1927 06 31.58  21.07  26.32 
1927 07 31.86  21.81  26.83 
1927 08 30.88  20.97  25.92 
1927 09 31.78  18.79  25.29 
1927 10 27.53  13.64  20.58 
1927 11 22.20   9.85  16.03 
1927 12 14.65   3.54   9.09 
1928 01 13.96   2.54   8.25 
1928 02 14.95   3.97   9.46 
1928 03 19.52   8.45  13.98 
1928 04 21.54  10.67  16.10 
1928 05 27.18  16.07  21.62 
1928 06 29.92  20.49  25.20 
1928 07 31.32  22.24  26.78 
1928 08 30.88  22.27  26.57 
1928 09 27.44  18.85  23.14 
1928 10 26.07  15.26  20.66 
1928 11 18.46   6.50  12.48 
1928 12 15.45   3.98   9.71 
1929 01 15.60   4.85  10.22 
1929 02 14.57   4.17   9.37 
1929 03 21.24  10.52  15.88 
1929 04 26.18  14.43  20.30 
1929 05 27.90  17.08  22.49 
1929 06 31.09  19.90  25.49 
1929 07 32.66  21.33  26.99 
1929 08 32.98  21.23  27.10 
1929 09 28.89  19.14  24.01 
1929 10 23.74  12.44  18.09 
1929 11 19.04   9.74  14.39 
1929 12 13.30   2.63   7.96 
1930 01 14.37   3.40   8.88 
1930 02 18.70   5.54  12.12 
1930 03 16.45   6.59  11.52 
1930 04 25.76  12.21  18.98 
1930 05 31.03  17.73  24.38 
1930 06 31.24  18.98  25.11 
1930 07 34.12  21.80  27.96 
1930 08 32.31  19.20  25.75 
1930 09 31.90  20.04  25.97 
1930 10 24.66   9.76  17.20 
1930 11 16.82   6.63  11.72 
1930 12 12.03   1.46   6.74 
1931 01 12.93   1.57   7.25 
1931 02 17.03   3.66  10.34 
1931 03 16.27   4.21  10.24 
1931 04 23.27   9.78  16.52 
1931 05 27.47  13.90  20.68 
1931 06 34.86  19.69  27.27 
1931 07 33.59  22.42  28.00 
1931 08 31.64  20.18  25.91 
1931 09 32.84  19.35  26.09 
1931 10 26.86  12.45  19.65 
1931 11 22.63   8.71  15.67 
1931 12 18.11   7.84  12.97 
1932 01 18.48   6.68  12.58 
1932 02 19.11   8.33  13.72 
1932 03 99.99   5.34 -99.99 
1932 04 25.26  10.95  18.10 
1932 05 27.88  15.18  21.53 
1932 06 31.33  20.24  25.78 
1932 07 33.84  21.94  27.89 
1932 08 31.24  21.55  26.39 
1932 09 29.14  18.27  23.70 
1932 10 24.05  11.49  17.77 
1932 11 16.07   4.63  10.35 
1932 12 16.57   6.47  11.52 
1933 01 17.35   5.66  11.50 
1933 02 15.78   4.21  10.00 
1933 03 19.94   7.36  13.65 
1933 04 23.24  11.52  17.38 
1933 05 31.81  19.42  25.61 
1933 06 32.91  20.46  26.69 
1933 07 31.44  21.44  26.44 
1933 08 33.29  21.69  27.49 
1933 09 31.75  19.96  25.86 
1933 10 25.78  13.29  19.53 
1933 11 18.59   5.73  12.16 
1933 12 19.41   7.41  13.41 
1934 01 15.38   3.94   9.66 
1934 02 13.23    .41   6.82 
1934 03 18.76   6.61  12.68 
1934 04 24.92  12.49  18.70 
1934 05 27.36  16.45  21.90 
1934 06 32.23  21.19  26.71 
1934 07 34.46  22.67  28.56 
1934 08 32.72  22.13  27.42 
1934 09 30.74  18.20  24.47 
1934 10 25.58  12.61  19.09 
1934 11 20.58   7.33  13.95 
1934 12 13.73 -99.99 -99.99 
1935 01 15.15 -99.99 -99.99 
1935 02 16.54   2.07   9.30 
1935 03 23.85   9.22  16.54 
1935 04 24.71  12.36  18.53 
1935 05 29.88  16.52  23.20 
1935 06 33.00  19.32  26.16 
1935 07 32.84  21.81  27.32 
1935 08 32.24  21.66  26.95 
1935 09 28.99  17.78  23.38 
1935 10 27.00  11.77  19.38 
1935 11 20.61   7.30  13.95 
1935 12  9.30  -1.02   4.14 
1936 01 12.08 -99.99 -99.99 
1936 02 13.31    .88   7.09 
1936 03 22.41   8.10  15.26 
1936 04 24.16   9.84  17.00 
1936 05 30.45  15.72  23.08 
1936 06 33.72  19.70  26.71 
1936 07 34.33  21.29  27.81 
1936 08 33.03  21.10  27.06 
1936 09 31.73  19.40  25.56 
1936 10 25.41  13.71  19.56 
1936 11 17.70 -99.99 -99.99 
1936 12 14.98 -99.99 -99.99 
1937 01 18.46  11.23  14.85 
1937 02 14.51   3.18   8.84 
1937 03 18.45   5.73  12.09 
1937 04 23.49  10.30  16.89 
1937 05 29.60  16.50  23.05 
1937 06 32.96  21.10  27.03 
1937 07 32.20  21.55  26.87 
1937 08 32.23  21.88  27.05 
1937 09 28.50  17.32  22.91 
1937 10 22.94  11.32  17.13 
1937 11 17.16   3.52  10.34 
1937 12 14.22   1.84   8.03 
1938 01 13.91 -99.99 -99.99 
1938 02 19.70   5.63  12.67 
1938 03 23.84  10.05  16.94 
1938 04 23.84  10.93  17.38 
1938 05 28.99  17.26  23.12 
1938 06 30.74  19.64  25.18 
1938 07 31.69  21.56  26.62 
1938 08 33.34  22.08  27.71 
1938 09 30.21  18.19  24.20 
1938 10 26.51  10.91  18.70 
1938 11 21.07   6.75  13.91 
1938 12 14.81   1.28   8.04 
1939 01 16.68   2.89   9.78 
1939 02 18.56 -99.99 -99.99 
1939 03 22.28   8.89  15.59 
1939 04 24.77  10.78  17.77 
1939 05 27.38  15.89  21.63 
1939 06 31.64  21.52  26.58 
1939 07 32.61  21.64  27.12 
1939 08 30.00  21.31  25.65 
1939 09 29.60  19.89  24.74 
1939 10 25.81  12.36  19.08 
1939 11 18.41   4.46  11.43 
1939 12 15.45   2.47   8.96 
1940 01  6.95  -4.89   1.03 
1940 03 18.69   5.00  11.84 
1940 04 23.17   9.81  16.49 
1940 05 28.59  13.85  21.22 
1940 06 31.25  19.96  25.61 
1940 07 30.69  21.04  25.86 
1940 08 31.51  21.69  26.60 
1940 09 29.92  16.17  23.04 
1940 10 25.92  11.49  18.70 
1940 11 19.50   6.38  12.94 
1940 12 15.87   4.13  10.00 
1941 01 14.61   1.91   8.26 
1941 02 12.21   -.58   5.81 
1941 03 16.65   2.95   9.80 
1941 04 25.56  12.58  19.07 
1941 05 31.04  16.10  23.57 
1941 06 31.30  20.93  26.11 
1941 07 32.00  22.51  27.25 
1941 08 32.80  22.54  27.67 
1941 09 31.47  19.92  25.69 
1941 10 27.08  16.24  21.66 
1941 11 19.28   5.75  12.51 
1941 12 15.67 -99.99 -99.99 
1942 01 13.95 -99.99 -99.99 
1942 02 11.96 -99.99 -99.99 
1942 03 18.46   6.83  12.65 
1942 04 26.81  10.64  18.72 
1942 05 28.77  16.33  22.55 
1942 06 31.30  20.66  25.98 
1942 07 33.33  22.27  27.80 
1942 08 31.71  21.06  26.38 
1942 09 30.15  18.20  24.17 
1942 10 25.01  11.53  18.27 
1942 11 21.53 -99.99 -99.99 
1942 12 14.58 -99.99 -99.99 
1943 01 15.99 -99.99 -99.99 
1943 02 17.61 -99.99 -99.99 
1943 03 19.03 -99.99 -99.99 
1943 04 24.62  10.53  17.57 
1943 05 29.37  16.95  23.16 
1943 06 33.12  21.84  27.48 
1943 07 32.40  22.13  27.26 
1943 08 34.08  21.71  27.89 
1943 09 29.58  16.77  23.17 
1943 10 24.69   9.58  17.13 
1943 11 19.31   4.04  11.67 
1943 12 14.84   2.24   8.54 
1944 01 13.97   2.86   8.41 
1944 02 18.82   7.46  13.14 
1944 03 20.84 -99.99 -99.99 
1944 04 23.02 -99.99 -99.99 
1944 05 29.95  16.29  23.12 
1944 06 34.66  21.01  27.84 
1944 07 31.99  20.95  26.47 
1944 08 31.62  21.39  26.50 
1944 09 30.07  19.51  24.79 
1944 10 25.03  10.70  17.86 
1944 11 17.92   5.86  11.89 
1944 12 13.05 -99.99 -99.99 
1945 01 14.05 -99.99 -99.99 
1945 03 25.49  11.24  18.36 
1945 04 26.54  12.93  19.73 
1945 05 27.66  14.25  20.95 
1945 06 33.09  20.52  26.80 
1945 07 31.36  21.97  26.66 
1945 08 31.92  21.29  26.60 
1945 09 30.77  20.26  25.51 
1945 10 24.10  11.20  17.65 
1945 11 20.04   6.15  13.09 
1945 12 10.81 -99.99 -99.99 
1946 01 14.48 -99.99 -99.99 
1946 02 18.57   2.72  10.64 
1946 03 22.55   9.93  16.24 
1946 04 25.69  12.29  18.99 
1946 05 27.58  16.20  21.89 
1946 06 31.03  19.51  25.27 
1946 07 31.04  21.58  26.31 
1946 08 31.06  20.87  25.96 
1946 09 27.21  17.95  22.58 
1946 10 23.84  11.20  17.52 
1946 11 21.50  10.67  16.08 
1946 12 17.83   2.88  10.35 
1947 01 16.09 -99.99 -99.99 
1947 02 14.26   -.82   6.72 
1947 03 15.74   3.09   9.41 
1947 04 25.80  13.34  19.57 
1947 05 28.25  16.06  22.15 
1947 06 30.83  19.98  25.40 
1947 07 31.55  19.50  25.52 
1947 08 30.80  21.28  26.04 
1947 09 30.26  19.20  24.73 
1947 10 25.31  15.70  20.50 
1947 11 15.32   6.52  10.92 
1947 12 14.69   2.68   8.68 
1948 01 11.25 -99.99 -99.99 
1948 02 16.79 -99.99 -99.99 
1948 03 21.11   8.38  14.74 
1948 04 26.31  13.45  19.87 
1948 05 30.52  16.19  23.35 
1948 06 34.22  20.70  27.46 
1948 07 32.46  22.24  27.34 
1948 08 31.85  20.89  26.37 
1948 09 28.42  18.31  23.36 
1948 10 22.91   9.85  16.38 
1948 11 20.56   8.46  14.51 
1948 12 15.53   5.83  10.68 
1949 01 18.43   8.01  13.22 
1949 02 18.26   7.93  13.09 
1949 03 19.79   6.75  13.27 
1949 04 23.15  10.95  17.04 
1949 05 29.41  16.11  22.76 
1949 06 31.02  20.17  25.59 
1949 07 32.55  22.47  27.50 
1949 08 31.20  21.28  26.24 
1949 09 28.67  17.70  23.18 
1949 10 26.36  15.70  21.03 
1949 11 18.20   4.79  11.49 
1949 12 15.06   4.29   9.67 
1950 01 20.74  10.12  15.43 
1950 02 18.42   6.36  12.39 
1950 03 17.45   5.47  11.46 
1950 04 23.18   9.12  16.15 
1950 05 29.93  18.15  24.04 
1950 06 32.23  20.73  26.48 
1950 07 30.70  20.93  25.81 
1950 08 31.78  19.91  25.84 
1950 09 27.97  17.60  22.78 
1950 10 25.34  13.93  19.63 
1950 11 17.11   2.72   9.91 
1950 12 11.19    .78   5.98 
1951 01 15.63   3.08   9.35 
1951 02 16.85   3.10   9.97 
1951 03 19.26   7.79  13.52 
1951 04 23.73  10.53  17.12 
1951 05 29.20  14.46  21.83 
1951 06 32.53  20.68  26.60 
1951 07 32.34  21.53  26.93 
1951 08 34.28  22.35  28.31 
1951 09 30.02  19.89  24.95 
1951 10 26.16  13.78  19.96 
1951 11 16.50   4.11  10.30 
1951 12 16.31   4.65  10.48 
1952 01 17.91   6.24  12.07 
1952 02 16.41   5.39  10.90 
1952 03 19.79   6.78  13.29 
1952 04 24.12  10.43  17.27 
1952 05 29.31  16.27  22.79 
1952 06 34.50  22.58  28.54 
1952 07 35.00  22.31  28.66 
1952 08 32.40  21.58  26.99 
1952 09 28.06  17.95  23.00 
1952 10 23.28   9.64  16.46 
1952 11 19.06   6.04  12.54 
1952 12 12.96   2.49   7.72 
1953 01 15.94   3.91   9.92 
1953 02 15.70   4.63  10.16 
1953 03 21.01   8.39  14.70 
1953 04 23.44   9.43  16.44 
1953 05 30.09  18.10  24.09 
1953 06 31.83  21.32  26.57 
1953 07 31.35  21.33  26.34 
1953 08 33.39  19.82  26.60 
1953 09 29.27  16.73  23.00 
1953 10 26.32  11.91  19.11 
1953 11 19.83   4.08  11.95 
1953 12 14.32   3.01   8.66 
1954 01 16.94   2.84   9.89 
1954 02 19.62   4.44  12.03 
1954 03 20.29   6.80  13.54 
1954 04 27.57  13.14  20.35 
1954 05 26.77  12.85  19.81 
1954 06 35.39  19.29  27.34 
1954 07 35.40  21.42  28.41 
1954 08 36.66  21.03  28.84 
1954 09 34.87  18.89  26.88 
1954 10 27.75  11.17  19.45 
1954 11 18.21   4.37  11.29 
1954 12 14.90   1.69   8.29 
1955 01 14.58   1.73   8.15 
1955 02 17.40   3.89  10.64 
1955 03 23.26   7.77  15.51 
1955 04 27.18  12.38  19.78 
1955 05 31.33  16.54  23.93 
1955 06 31.10  16.46  23.78 
1955 07 32.68  20.99  26.84 
1955 08 33.41  21.05  27.23 
1955 09 29.53  18.83  24.18 
1955 10 24.75   9.80  17.27 
1955 11 19.20   4.51  11.86 
1955 12 13.90   2.44   8.17 
1956 01 14.16    .33   7.24 
1956 02 19.56   5.56  12.56 
1956 03 20.49   5.83  13.16 
1956 04 25.05   9.54  17.29 
1956 05 30.64  15.96  23.30 
1956 06 32.77  18.62  25.70 
1956 07 33.20  20.10  26.65 
1956 08 34.64  20.29  27.46 
1956 09 29.78  15.26  22.52 
1956 10 24.73  13.58  19.15 
1956 11 19.35   3.77  11.56 
1956 12 20.41   6.08  13.24 
1957 01 16.20   2.69   9.45 
1957 02 20.85   7.84  14.34 
1957 03 18.50   6.45  12.47 
1957 04 26.16  11.87  19.01 
1957 05 28.95  16.48  22.71 
1957 06 31.35  20.06  25.70 
1957 07 32.07  20.44  26.25 
1957 08 32.81  19.39  26.10 
1957 09 29.54  18.70  24.12 
1957 10 22.94  10.14  16.54 
1957 11 19.67   7.65  13.66 
1957 12 16.08   2.67   9.37 
1958 01 11.32   -.51   5.40 
1958 02 12.78  -1.39   5.69 
1958 03 17.51   6.09  11.80 
1958 04 25.18  11.19  18.18 
1958 05 29.31  15.66  22.48 
1958 06 31.98  19.64  25.81 
1958 07 32.57  20.69  26.63 
1958 08 33.59  19.99  26.79 
1958 09 32.55  17.69  25.12 
1958 10 24.78  10.13  17.45 
1958 11 22.78   7.50  15.14 
1958 12 13.88    .75   7.31 
1959 01 14.44    .97   7.70 
1959 02 15.81   5.16  10.48 
1959 03 18.87   5.04  11.95 
1959 04 25.69  10.89  18.29 
1959 05 30.95  16.75  23.85 
1959 06 32.12  19.31  25.71 
1959 07 32.53  20.42  26.47 
1959 08 33.68  20.64  27.16 
1959 09 29.42  18.20  23.81 
1959 10 24.22  14.54  19.37 
1959 11 19.48   4.81  12.14 
1959 12 15.73   1.97   8.84 
1960 01 14.37   2.55   8.46 
1960 02 15.08   1.36   8.22 
1960 03 14.70   1.30   8.00 
1960 04 26.44  11.00  18.72 
1960 05 30.66  13.39  22.02 
1960 06 32.99  18.56  25.77 
1960 07 34.34  20.86  27.60 
1960 08 33.84  20.28  27.06 
1960 09 31.44  18.70  25.07 
1960 10 27.25  12.42  19.83 
1960 11 20.80   5.42  13.11 
1960 12 13.75  -1.49   6.13 
1961 01 12.33   -.68   5.82 
1961 02 19.23   5.35  12.29 
1961 03 21.97   7.70  14.83 
1961 04 22.72   7.61  15.16 
1961 05 27.45  13.85  20.65 
1961 06 31.02  17.68  24.35 
1961 07 33.59  19.85  26.72 
1961 08 31.72  19.54  25.63 
1961 09 30.81  17.52  24.16 
1961 10 26.63   8.75  17.68 
1961 11 21.91   7.58  14.74 
1961 12 15.15   3.01   9.08 
1962 01 13.13   1.77   7.45 
1962 02 21.22   5.99  13.60 
1962 03 17.51   5.20  11.35 
1962 04 24.06   9.04  16.54 
1962 05 34.02  16.90  25.46 
1962 06 31.51  19.40  25.45 
1962 07 34.83  20.94  27.88 
1962 08 33.16  20.17  26.66 
1962 09 29.62  17.25  23.43 
1962 10 26.79  11.34  19.06 
1962 11 17.78   4.66  11.22 
1962 12 13.59    .56   7.07 
1963 01 11.86   -.91   5.47 
1963 02 13.94   -.82   6.56 
1963 03 23.30   8.05  15.67 
1963 04 25.94  11.97  18.95 
1963 05 29.53  15.58  22.55 
1963 06 31.46  19.39  25.42 
1963 07 32.50  19.92  26.21 
1963 08 34.28  20.45  27.36 
1963 09 29.80  16.93  23.36 
1963 10 26.31  11.15  18.73 
1963 11 19.95   4.21  12.08 
1963 12 11.29  -2.23   4.52 
1964 01 11.95    .28   6.11 
1964 02 12.77    .72   6.74 
1964 03 19.98   5.59  12.78 
1964 04 24.84  11.94  18.39 
1964 05 29.25  15.10  22.17 
1964 06 34.14  20.31  27.22 
1964 07 30.53  20.74  25.63 
1964 08 31.45  20.54  25.99 
1964 09 29.78  17.62  23.70 
1964 10 22.57   9.22  15.90 
1964 11 21.75   7.59  14.67 
1964 12 15.43   3.42   9.42 
1965 01 16.26   1.07   8.66 
1965 02 15.14   1.75   8.44 
1965 03 18.66   5.10  11.88 
1965 04 25.15  11.93  18.54 
1965 05 32.31  15.61  23.96 
1965 06 29.76  18.69  24.22 
1965 07 32.27  20.54  26.40 
1965 08 32.74  20.12  26.43 
1965 09 29.11  18.45  23.78 
1965 10 23.88  10.99  17.43 
1965 11 21.36   7.60  14.48 
1965 12 16.11 -99.99 -99.99 
1966 01 10.99    . 0   5.49 
1966 02 13.77   2.05   7.91 
1966 03 19.57   4.96  12.26 
1966 04 25.94  10.65  18.29 
1966 05 27.53  15.59  21.56 
1966 06 30.11  17.10  23.60 
1966 07 33.87  21.14  27.50 
1966 08 31.99  20.00  25.99 
1966 09 30.11  17.21  23.66 
1966 10 24.49  11.72  18.10 
1966 11 19.76   5.97  12.86 
1966 12 15.07   1.59   8.33 
1967 01 15.51   1.90   8.70 
1967 02 14.46   1.04   7.75 
1967 03 23.70   6.91  15.30 
1967 04 28.93  12.43  20.68 
1967 05 28.89  13.95  21.42 
1967 06 30.01  18.50  24.25 
1967 07 31.65  19.16  25.40 
1967 08 30.92  18.95  24.93 
1967 09 27.56  14.11  20.83 
1967 10 25.59   8.42  17.00 
1967 11 19.15   3.89  11.52 
1967 12 17.70   4.25  10.98 
1968 01 11.34    .15   5.74 
1968 02 13.20  -2.08   5.56 
1968 03 21.12   3.73  12.42 
1968 04 26.18  11.46  18.82 
1968 05 29.19  14.64  21.91 
1968 06 32.58  18.83  25.70 
1968 07 33.46  20.61  27.03 
1968 08 35.22  20.68  27.95 
1968 09 30.66  16.45  23.55 
1968 10 26.00  11.52  18.76 
1968 11 18.56   4.59  11.57 
1968 12 13.69   -.50   6.59 
1969 01 13.04    .11   6.57 
1969 02 13.88   1.73   7.80 
