1922 05  17.76   2.15   9.95 
1922 06  23.50   4.75  14.12 
1922 07  24.72   5.60  15.16 
1922 08  24.05   6.92  15.48 
1922 09  18.52   4.09  11.30 
1922 11   4.08  -3.27   0.40 
1922 12  -7.51 -17.82 -12.66 
1923 01  -2.64 -11.53  -7.08 
1923 02   0.48 -10.48  -5.00 
1923 03   4.11  -7.42  -1.65 
1923 04  14.05  -1.78   6.13 
1923 05  18.21   2.08  10.14 
1923 06  22.03   5.46  13.74 
1923 08  23.85   5.86  14.85 
1923 09  18.76   0.94   9.85 
1923 10  14.04   -.54   6.75 
1923 11   5.88  -1.10   2.39 
1923 12   0.89  -8.71  -3.91 
1924 01  -1.54  -9.52  -5.53 
1924 02   2.52  -4.05   -.76 
1924 03   5.18  -6.02   -.42 
1924 04   9.99  -1.41   4.29 
1924 05  21.08   0.50  10.79 
1924 06  22.58   4.33  13.45 
1924 07  25.45   8.12  16.78 
1924 08  21.85   5.83  13.84 
1924 09  17.87   4.92  11.40 
1924 10  12.76   3.12   7.94 
1924 11   -.24  -7.75  -3.99 
1924 12  -8.78 -19.45 -14.11 
1925 01  -2.25 -10.03  -6.14 
1925 02   1.00  -8.77  -3.88 
1925 04  14.22  -1.09   6.56 
1925 05  22.01   2.45  12.23 
1925 06  23.74   6.29  15.01 
1925 07  27.51   6.94  17.22 
1925 08  21.22   7.39  14.30 
1925 09  17.25   2.54   9.89 
1925 10  10.83  -3.49   3.67 
1925 11   3.51  -2.81   0.35 
1925 12   3.04  -2.18   0.42 
1926 01   0.34  -5.32  -2.49 
1926 02   3.82  -4.44   -.31 
1926 04  17.41   0.72   9.06 
1926 06  22.11   4.80  13.45 
1926 07  27.57   6.81  17.19 
1926 12   0.01 -10.78  -5.38 
1927 01  -4.00 -13.28  -8.63 
1927 02   0.54  -8.97  -4.21 
1927 03   4.92  -4.67   0.12 
1927 04   9.77  -2.73   3.52 
1927 05  16.65   1.53   9.09 
1927 06  20.59   6.54  13.56 
1927 07  22.92   7.72  15.32 
1927 08  25.70   7.31  16.50 
1927 09  16.08   3.85   9.96 
1927 10   9.91   0.66   5.28 
1927 11  -3.43  -9.79  -6.61 
1927 12  -9.97 -18.73 -14.35 
1928 01  -2.43 -13.50  -7.96 
1928 02   3.36 -10.24  -3.44 
1928 03   5.99  -6.44   -.22 
1928 04   9.21  -4.44   2.38 
1928 05  18.65   1.83  10.24 
1928 06  20.29   3.63  11.96 
1928 07  23.61   5.86  14.73 
1928 08  20.50   3.17  11.83 
1928 09  19.10   0.14   9.62 
1928 10   8.56  -2.91   2.82 
1928 11   3.77  -5.41   -.81 
1928 12  -2.13 -11.52  -6.82 
1929 01  -8.79 -20.52 -14.65 
1929 02  -5.12 -18.89 -12.00 
1929 03   5.46  -7.83  -1.18 
1929 04   9.43  -8.38   0.52 
1929 05  16.69  -2.21   7.24 
1929 06  18.99   2.87  10.93 
1929 07  20.26   3.30  11.78 
1929 08  21.52   2.64  12.08 
1929 09  16.79  -1.30   7.74 
1929 10  12.06  -1.38   5.34 
1929 11   2.25  -7.50  -2.62 
1929 12  -5.20 -16.06 -10.62 
1930 01 -13.32 -28.60 -20.96 
1930 02   1.39 -10.26  -4.43 
1930 03   4.69 -10.91  -3.11 
1930 04  13.59  -3.76   4.91 
1930 05  14.53  -1.74   6.39 
1930 06  17.20   2.67   9.93 
1930 07  21.88   2.32  12.10 
1930 08  23.01   3.11  13.06 
1930 09  15.93   -.74   7.59 
1930 10   7.90  -4.73   1.58 
1930 11   3.33  -7.14  -1.90 
1930 12   1.33  -6.34  -2.50 
1931 01   1.00  -7.78  -3.39 
1931 02   3.00  -8.64  -2.82 
1931 03   3.69  -9.68  -2.99 
1931 04  13.00  -4.03   4.48 
1931 05  15.95  -1.66   7.14 
1931 06  18.60   2.01  10.30 
1931 07  21.99   3.09  12.54 
1931 08  21.33   2.40  11.86 
1931 09  14.06   -.47   6.79 
1931 10   9.85  -3.32   3.27 
1931 11  -2.03 -14.98  -8.50 
1931 12  -2.33 -11.99  -7.16 
1932 01  -5.38 -16.54 -10.96 
1932 02  -2.62 -15.46  -9.04 
1932 03   3.18 -10.70  -3.75 
1932 04  12.27  -4.36   3.95 
1932 05  16.62  -1.14   7.74 
1932 06  20.00   4.42  12.21 
1932 07  19.40   6.29  12.84 
1932 08  22.30   7.11  14.70 
1932 09  16.92   3.21  10.06 
1932 10   9.14   -.70   4.22 
1932 11   1.91  -4.21  -1.15 
1932 12  -6.45 -13.20  -9.82 
1933 01  -3.88 -10.55  -7.21 
1933 02  -4.35 -12.66  -8.50 
1933 03   2.89  -7.65  -2.38 
1933 04   9.24  -4.11   2.56 
1933 05  15.61   0.65   8.13 
1933 06  17.54   4.15  10.84 
1933 07  19.99   5.17  12.58 
1933 08  24.08   5.81  14.94 
1933 09  13.35   1.83   7.59 
1933 10   8.17  -1.58   3.29 
1933 11   5.49  -1.55   1.96 
1933 12 -10.68 -19.53 -15.10 
1934 01  -1.00  -7.75  -4.37 
1934 02   2.66  -8.89  -3.12 
1934 03   4.80  -5.35   -.27 
1934 04  15.42   -.45   7.48 
1934 05  16.79   2.76   9.77 
1934 06  18.39   3.75  11.07 
1934 07  19.35   6.08  12.71 
1934 08  20.79   5.61  13.20 
1934 09  13.43   1.65   7.54 
1934 10  10.45   0.70   5.57 
1934 11   4.94  -1.87   1.54 
1934 12  -4.17 -11.66  -7.91 
1935 01  -7.57 -16.96 -12.27 
1935 02   3.13  -6.45  -1.65 
1935 03   0.96  -9.92  -4.48 
1935 04   8.51  -7.00   0.75 
1935 05  16.81   0.68   8.74 
1935 06  18.73   6.39  12.56 
1935 07  22.01   8.42  15.21 
1935 08  19.16   6.61  12.88 
1935 09  17.20   3.11  10.16 
1935 10   9.43  -1.54   3.94 
1935 11   0.21  -6.72  -3.25 
1935 12   0.79  -3.49  -1.35 
1936 01  -5.13 -11.69  -8.41 
1936 02 -12.76 -25.31 -19.03 
1936 03   2.03  -6.44  -2.20 
1936 04  11.76  -2.08   4.83 
1936 05  19.87   5.45  12.66 
1936 06  20.59   6.66  13.62 
1936 07  22.14   7.90  15.02 
1936 08  21.57   7.37  14.46 
1936 09  14.06   3.85   8.95 
1936 10  11.18   1.76   6.47 
1936 11   2.56  -4.01   -.72 
1936 12  -4.81 -10.65  -7.72 
1937 01 -13.75 -22.98 -18.36 
1937 02  -4.37 -14.17  -9.27 
1937 03   7.56  -2.17   2.69 
1937 04  10.54   0.30   5.42 
1937 05  16.23   2.76   9.49 
1937 06  21.75   6.60  14.17 
1937 07  23.13   7.81  15.46 
1937 08  17.45   6.33  11.89 
1937 09  19.32   4.06  11.69 
1937 10  12.09   2.99   7.54 
1937 11   0.43  -5.94  -2.75 
1937 12  -3.86  -9.89  -6.87 
1938 01  -2.88  -9.08  -5.98 
1938 02  -2.92 -10.69  -6.80 
1938 03   5.63  -3.54   1.04 
1938 04  12.08   -.37   5.85 
1938 05  16.85   1.96   9.40 
1938 06  20.20   6.41  13.30 
1938 07  24.10   8.20  16.15 
1938 08  19.20   6.45  12.82 
1938 09  21.44   7.05  14.24 
1938 10  12.41   2.46   7.43 
1938 11   0.22  -5.22  -2.50 
1938 12  -4.38 -10.09  -7.23 
1939 01  -1.04  -5.77  -3.40 
1939 02  -4.41 -12.76  -8.58 
1939 03   4.01  -6.88  -1.43 
1939 04  12.44   -.64   5.89 
1939 05  17.08   3.69  10.38 
1939 06  18.98   5.37  12.17 
1939 07  21.75   8.14  14.94 
1939 08  23.68   6.89  15.28 
1939 09  14.96   4.46   9.71 
1939 10   7.39   0.46   3.92 
1939 11   6.40   1.08   3.74 
1939 12   1.08  -3.39  -1.15 
1940 01  -2.99 -10.57  -6.78 
1940 02   1.20  -7.81  -3.30 
1940 03   7.24   -.93   3.15 
1940 04  11.76   0.16   5.96 
1940 05  16.75   3.84  10.29 
1940 06  18.36   6.09  12.22 
1940 07  23.24   9.02  16.13 
1940 08  21.65   7.76  14.70 
1940 09  21.13   5.63  13.37 
1940 10  12.75   2.23   7.49 
1940 11  -1.15  -7.87  -4.50 
1940 12   -.26  -4.44  -2.35 
1941 01   -.90  -7.14  -4.02 
1941 02   3.02  -7.40  -2.19 
1941 03  10.27  -1.29   4.49 
1941 04  16.82   1.12   8.97 
1941 05  16.82   3.52  10.17 
1941 06  20.36   8.04  14.20 
1941 07  24.43  10.31  17.37 
1941 08  22.21   7.35  14.78 
1941 09  12.99   3.67   8.33 
1941 10  10.91   2.47   6.69 
1941 11   3.39  -2.31   0.54 
1941 12  -2.68  -8.55  -5.61 
1942 01  -2.63  -9.09  -5.86 
1942 02   0.62  -8.60  -3.99 
1942 03   4.66  -5.38   -.36 
1942 04  12.50   -.25   6.12 
1942 05  18.54   3.14  10.84 
1942 06  20.32   6.03  13.17 
1942 07  24.57   9.34  16.95 
1942 08  22.59   7.36  14.97 
1942 09  18.29   4.29  11.29 
1942 10  10.24   1.94   6.09 
1942 11  -1.15  -7.74  -4.44 
1942 12  -3.13  -8.79  -5.96 
1943 01 -10.31 -18.37 -14.34 
1943 02   2.72  -5.87  -1.57 
1943 03   2.39  -9.68  -3.64 
1943 04  13.69   -.39   6.64 
1943 05  14.57   0.58   7.57 
1943 06  19.14   4.85  11.99 
1943 07  21.68   8.84  15.26 
1943 08  19.19   8.21  13.70 
1943 09  18.04   3.88  10.96 
1943 10  12.04   1.85   6.94 
1943 11   5.52   0.22   2.87 
1943 12   -.96  -5.57  -3.26 
1944 01  -1.17  -6.98  -4.08 
1944 02   0.47  -8.25  -3.89 
1944 03   2.21  -8.66  -3.22 
1944 04  15.27   0.05   7.66 
1944 05  17.76   2.67  10.21 
1944 06  20.80   7.34  14.07 
1944 07  22.26   8.60  15.43 
1944 08  19.24   7.89  13.56 
1944 09  17.51   5.40  11.45 
1944 10  15.75   2.55   9.14 
1944 11   3.41  -2.08   0.66 
1944 12  -5.47 -12.20  -8.83 
1945 01  -1.95  -9.10  -5.52 
1945 02   0.00  -8.82  -4.41 
1945 03   4.42  -4.23   0.09 
1945 04   7.37  -3.22   2.07 
1945 05  19.41   1.95  10.68 
1945 06  19.04   5.67  12.36 
1945 07  22.67   8.02  15.34 
1945 08  22.41   7.53  14.97 
1945 09  14.25   4.23   9.24 
1945 10  10.46   1.07   5.76 
1945 11  -2.33  -8.17  -5.25 
1945 12  -2.53  -6.37  -4.44 
1946 01  -1.33  -6.96  -4.14 
1946 02   1.11  -6.73  -2.81 
1946 03   5.85  -2.42   1.71 
1946 04  10.83   -.78   5.02 
1946 05  19.95   2.25  11.10 
1946 06  19.92   6.08  13.00 
1946 07  21.28   8.68  14.98 
1946 08  22.84   6.60  14.72 
1946 09  17.67   4.10  10.88 
1946 10   8.56  -1.16   3.70 
1946 11  -1.41  -9.06  -5.23 
1946 12  -4.33  -9.60  -6.97 
1947 01  -6.35 -11.63  -8.99 
1947 02   1.16  -7.93  -3.38 
1947 03   7.00  -5.70   0.65 
1947 04  12.60   0.02   6.31 
1947 05  17.95   1.99   9.97 
1947 06  19.33   6.57  12.95 
1947 07  22.47   8.79  15.62 
1947 08  20.35   6.55  13.45 
1947 09  18.48   3.83  11.15 
1947 10  11.24   1.37   6.30 
1947 11   0.55  -4.44  -1.94 
1947 12  -1.13  -5.01  -3.07 
1948 01  -1.53  -6.85  -4.19 
1948 02  -4.02 -14.26  -9.14 
1948 03   3.92  -7.39  -1.73 
1948 04   7.63  -4.44   1.59 
1948 05  19.98   4.11  12.04 
1948 06  24.72   8.18  16.45 
1948 07  21.18   8.43  14.81 
1948 08  20.31   8.10  14.20 
1948 09  15.84   4.33  10.08 
1948 10  11.23   0.21   5.72 
1948 11   1.02  -3.97  -1.47 
1948 12  -7.43 -99.99 -99.99 
1949 01  -7.30 -14.80 -11.05 
1949 02  -2.50 -99.99 -99.99 
1949 03   6.63  -4.67   0.97 
1949 04  13.02   1.45   7.23 
1949 05  19.14   3.46  11.29 
1949 06  18.90   5.79  12.34 
1949 07  22.31   7.99  15.15 
1949 08  20.96   7.54  14.25 
1949 09  20.53   4.27  12.40 
1949 10   7.91   0.07   3.99 
1949 11   6.45   0.24   3.34 
1949 12  -8.89 -14.25 -11.57 
1950 01 -20.37 -30.88 -25.62 
1950 02   0.72  -5.51  -2.39 
1950 03   4.55  -6.91  -1.17 
1950 04   9.27  -1.60   3.83 
1950 05  15.43   1.66   8.54 
1950 06  25.81   4.66  15.23 
1950 07  25.14   7.99  16.56 
1950 08  22.75   5.94  14.34 
1950 09  22.93   2.94  12.93 
1950 10   8.99   -.45   4.27 
1950 11  -2.50 -10.83  -6.66 
1950 12   -.10  -6.68  -3.39 
1951 01  -6.71 -16.86 -11.78 
1951 02   -.75 -11.71  -6.23 
1951 03   0.76 -10.41  -4.82 
1951 04  14.34  -3.13   5.60 
1951 05  19.64   2.68  11.16 
1951 06  21.89   3.83  12.86 
1951 07  25.47   7.69  16.58 
1951 08  22.91   5.71  14.31 
1951 09  18.37   1.80  10.08 
1951 10   8.21   -.57   3.82 
1951 11   1.34  -4.94  -1.80 
1951 12  -8.06 -15.04 -11.55 
1952 01  -7.66 -15.84 -11.75 
1952 02   1.25  -8.62  -3.68 
1952 03   5.25  -5.37  -0.05 
1952 04  12.72   -.99   5.86 
1952 05  19.79   1.96  10.87 
1952 06  21.06   6.17  13.61 
1952 07  24.32   7.19  15.75 
1952 08  24.43   7.40  15.91 
1952 09  19.50   4.84  12.17 
1952 10  14.59   1.57   8.08 
1952 11   3.28  -3.18   0.04 
1952 12   0.30  -5.04  -2.36 
1953 01  -5.81 -15.33 -10.57 
1953 02   2.72  -5.38  -1.33 
1953 03   6.19  -4.33   0.93 
1953 04  10.40  -2.66   3.87 
1953 05  21.12   2.81  11.96 
1953 06  21.04   6.82  13.93 
1953 07  22.63   8.41  15.52 
1953 08  23.43   6.01  14.72 
1953 09  17.69   3.34  10.51 
1953 10  13.37   3.58   8.47 
1953 11   5.66   0.09   2.87 
1953 12   -.41  -5.15  -2.78 
1954 02   2.30  -4.12   -.91 
1954 03   4.69  -8.45  -1.87 
1954 04   5.48  -5.48   0.00 
1954 05  18.91   1.74  10.32 
1954 06  19.87   5.47  12.67 
1954 07  22.64   6.11  14.37 
1954 08  22.72   7.34  15.03 
1954 09  18.36   4.21  11.28 
1954 10  10.52   -.18   5.17 
1954 11   7.01   1.39   4.20 
1954 12   -.77  -6.58  -3.67 
1955 01  -2.77 -11.29  -7.03 
1955 02  -2.45 -11.76  -7.10 
1955 03  -1.01 -11.75  -6.38 
1955 04  11.78  -2.39   4.69 
1955 05  15.71   1.44   8.57 
1955 06  22.13   5.95  14.03 
1955 07  24.84   8.10  16.47 
1955 08  22.13   5.80  13.96 
1955 09  19.10   2.63  10.86 
1955 10  10.33   1.09   5.71 
1955 11  -6.58 -16.46 -11.52 
1955 12  -8.16 -17.04 -12.60 
1956 01  -6.77 -16.45 -11.61 
1956 02  -4.96 -14.06  -9.51 
1956 03   3.71  -6.27  -1.28 
1956 04  13.74  -2.74   5.50 
1956 05  22.24   0.78  11.51 
1956 06  19.33   6.80  13.06 
1956 07  27.56   7.42  17.49 
1956 08  24.67   7.94  16.30 
1956 09  18.89   3.37  11.12 
1956 10   9.28   -.21   4.53 
1956 11   2.08  -4.42  -1.16 
1956 12  -1.84  -7.71  -4.77 
1957 09  20.94 -99.99 -99.99 
1957 10   9.54  -3.40   3.07 
1957 11   3.95  -3.44   0.25 
1957 12   -.52  -8.09  -4.31 
1958 01   1.15  -5.24  -2.04 
1958 02   1.10  -7.55  -3.22 
1958 03   5.87  -6.20   -.16 
1958 04  10.84  -1.48   4.68 
1958 05  21.06   1.85  11.45 
1958 06  24.37   5.36  14.86 
1958 07  25.63   5.88  15.75 
1958 08  23.53   5.90  14.71 
1958 09  14.26   3.94   9.10 
1958 10  10.81   1.75   6.28 
1958 11   -.18  -8.34  -4.26 
1958 12  -1.75  -7.93  -4.84 
1959 01  -4.83 -12.76  -8.79 
1959 02  -1.80 -12.97  -7.38 
1959 03   5.23  -4.16   0.53 
1959 04  10.79  -1.54   4.62 
1959 05  15.87   1.46   8.66 
1959 06  19.73   5.85  12.79 
1959 07  23.71   7.11  15.41 
1959 08  17.82   4.35  11.08 
1959 09  14.85   3.47   9.16 
1959 10   7.87   0.55   4.21 
1959 11   -.74  -8.63  -4.68 
1959 12   -.74  -7.59  -4.16 
1960 01  -5.41 -17.40 -11.40 
1960 02   0.09  -9.89  -4.90 
1960 03   5.00  -7.53  -1.26 
1960 04  12.53  -1.09   5.72 
1960 05  13.89   1.49   7.69 
1960 06  17.69   5.32  11.50 
1960 07  25.94   6.20  16.07 
1960 08  20.50   6.89  13.69 
1960 09  17.04   1.33   9.18 
1960 10  11.35   1.53   6.44 
1960 11   0.38  -6.25  -2.93 
1960 12  -2.59  -8.52  -5.55 
1961 01  -1.24  -8.09  -4.66 
1961 02   2.02  -5.06  -1.52 
1961 03   7.39  -4.05   1.66 
1961 04  10.17  -1.76   4.20 
1961 05  19.45   1.95  10.70 
1961 06  24.00   6.50  15.25 
1961 07  25.34   9.14  17.24 
1961 08  25.81   7.00  16.40 
1961 11   -.76  -7.27  -4.01 
1961 12  -5.22 -13.53  -9.37 
1962 01  -4.48 -13.53  -9.01 
1962 02   0.07 -10.83  -5.38 
1962 03 -99.99  -4.98 -99.99 
1962 04  12.89   1.57   7.23 
1962 05  19.62   3.31  11.46 
1962 06  25.35   8.67  17.01 
1962 07  21.83   7.81  14.82 
1962 08  19.41   7.36  13.38 
1962 09  16.14   6.01  11.07 
1962 10  10.25   -.38   4.93 
1962 11   4.02   -.43   1.79 
1962 12   -.64  -7.36  -4.00 
1970 01  -6.34 -14.55 -10.44 
1970 02   3.45  -5.86  -1.20 
1970 03   5.27  -3.87   0.70 
1970 04  10.78  -1.83   4.47 
1970 05  15.85   2.52   9.18 
1970 06  23.52   6.40  14.96 
1970 07  25.36   7.59  16.47 
1970 08  24.25   6.92  15.58 
1970 09  15.15   3.29   9.21 
1970 10   9.72  -0.04   4.84 
1970 11   0.42  -8.32  -3.94 
1970 12  -6.29 -14.66 -10.47 
1971 01  -7.52 -14.28 -10.90 
1971 02   -.45  -9.82  -5.13 
1971 03   2.62  -9.10  -3.24 
1971 04  12.58   0.20   6.39 
1971 05  19.53   2.64  11.08 
1971 06  19.95   7.52  13.73 
1971 07  24.08   8.37  16.22 
1971 08  25.41   9.46  17.43 
1971 09  14.65   3.96   9.30 
1971 10   8.57   -.86   3.85 
1971 11   2.92  -2.97  -0.02 
1971 12  -8.55 -17.68 -13.11 
1972 01 -10.99 -21.41 -16.20 
1972 02  -3.52 -11.61  -7.56 
1972 03   6.28  -3.78   1.25 
1972 04   9.30  -2.56   3.37 
1972 05  19.39   2.92  11.15 
1972 06  20.55   7.20  13.87 
1972 07  22.01   7.28  14.64 
1972 08  23.55   6.56  15.05 
1972 09  13.08   2.55   7.81 
1972 10   9.04  -3.52   2.76 
1972 11   2.75  -5.77  -1.51 
1972 12  -7.45 -17.78 -12.61 
1973 01  -4.94 -13.11  -9.02 
1973 02   0.84  -7.24  -3.19 
1973 03   6.50  -1.95   2.27 
1973 04  12.42  -1.57   5.42 
1973 05  18.51   3.10  10.80 
1973 06  19.66   5.55  12.60 
1973 07  23.64   6.89  15.26 
1973 08  22.15   4.44  13.29 
1973 09  17.74   4.69  11.21 
1973 10   8.20   1.04   4.62 
1973 11  -3.54 -10.56  -7.05 
1973 12  -1.03  -7.21  -4.12 
1974 01  -8.67 -18.20 -13.43 
1974 02   1.36  -6.02  -2.33 
1974 03   3.09  -6.45  -1.68 
1974 04  13.21   0.07   6.64 
1974 05  15.58   1.97   8.77 
1974 06  21.32   5.20  13.26 
1974 07  21.50   6.71  14.10 
1974 08  23.58   6.57  15.07 
1974 09  18.27   3.55  10.91 
1974 10  12.08   1.90   6.99 
1974 11   1.96  -4.71  -1.37 
1974 12   0.36  -5.61  -2.62 
1975 01  -5.94 -13.74  -9.84 
1975 02  -6.73 -16.25 -11.49 
1975 03   2.63  -6.67  -2.02 
1975 04  11.83  -4.19   3.82 
1975 05  17.12   1.38   9.25 
1975 06  18.93   6.01  12.47 
1975 07  25.31   9.45  17.37 
1975 08  18.44   6.74  12.59 
1975 09  18.77   1.76  10.26 
1975 10   8.83   -.23   4.30 
1975 11   0.39  -7.76  -3.68 
1975 12  -2.25 -10.16  -6.20 
1976 01  -1.60  -9.57  -5.58 
1976 02   -.58  -9.62  -5.10 
1976 03   2.10  -7.16  -2.52 
1976 04  13.35  -1.41   5.97 
1976 05  16.82   2.86   9.84 
1976 06  17.94   5.39  11.66 
1976 07  21.48   8.29  14.88 
1976 08  20.86  10.28  15.57 
1976 09  17.75   5.75  11.75 
1976 10   9.85   0.04   4.94 
1976 11   3.15  -4.37   -.60 
1976 12   -.41  -6.57  -3.49 
1977 01  -3.56 -12.20  -7.88 
1977 02   3.66  -3.11   0.27 
1977 03   4.36  -3.83   0.26 
1977 04  14.71  -0.02   7.34 
1977 05  16.15   3.34   9.74 
1977 06  20.42   7.10  13.76 
1977 07  21.12   7.67  14.39 
1977 08  22.70   7.78  15.24 
1977 09  14.82   4.69   9.76 
1977 10  10.20   1.07   5.63 
1977 11   -.67  -6.47  -3.57 
1977 12  -8.41 -16.92 -12.66 
1978 01  -6.86 -16.87 -11.86 
1978 02   1.58  -7.68  -3.05 
1978 03   6.45  -2.79   1.83 
1978 04  13.81   -.35   6.73 
1978 05  16.87   2.41   9.64 
1978 06  22.56   7.11  14.83 
1978 07  24.16   9.10  16.63 
1978 08  21.18   8.34  14.76 
1978 09  14.60   5.85  10.22 
1978 10  10.68   1.53   6.10 
1978 11  -1.17  -7.85  -4.51 
1978 12  -7.10 -13.56 -10.33 
1979 01 -11.84 -21.71 -16.77 
1979 02  -4.80 -13.36  -9.08 
1979 03   6.19  -3.58   1.30 
1979 04  10.22  -1.64   4.29 
1979 05  15.66   3.68   9.67 
1979 06  20.17   5.82  12.99 
1979 07  24.11   8.05  16.08 
1979 08  24.92   6.90  15.91 
1979 09  18.03   5.88  11.95 
1979 10  10.98   1.54   6.26 
1979 12   -.77  -8.06  -4.41 
1980 01  -7.27 -16.46 -11.87 
1980 02   0.48  -8.14  -3.83 
1980 04  16.18   1.02   8.60 
1980 05  19.46   4.13  11.79 
1980 06  20.60   7.02  13.81 
1980 07  20.82   8.60  14.71 
1980 08  19.68   7.44  13.56 
