1950 10 17.50   9.60  13.55 
1950 11 19.20  10.60  14.90 
1950 12 22.80  13.30  18.04 
1951 01 20.60  13.30  16.95 
1951 02 22.80  14.40  18.59 
1951 03 21.50  13.30  17.40 
1951 04 17.79   6.20  12.00 
1951 05 14.60   4.19   9.39 
1951 06 13.00   4.80   8.89 
1951 07 12.60    .70   6.65 
1951 08 12.50    .60   6.55 
1951 09 16.79   3.90  10.35 
1951 10 20.40   6.40  13.40 
1951 11 25.00   9.20  17.10 
1951 12 26.10  11.70  18.90 
1952 01 29.00  15.40  22.20 
1952 02 23.70  13.30  18.50 
1952 03 20.70  12.00  16.35 
1952 04 18.40   8.89  13.65 
1952 05 14.30   5.60   9.95 
1952 06 13.20   2.40   7.80 
1952 07 11.30   1.70   6.50 
1952 08 12.20   2.60   7.39 
1952 09 17.20   4.80  11.00 
1952 10 19.79   8.20  14.00 
1952 11 22.50   9.50  16.00 
1952 12 25.20  11.90  18.54 
1953 01 22.90  12.40  17.65 
1953 02 21.60  12.50  17.04 
1953 03 21.30  11.60  16.45 
1953 04 21.60   9.39  15.50 
1953 05 16.10   4.90  10.50 
1953 06 14.10    .40   7.25 
1953 07 13.60    . 0   6.80 
1953 08 13.80    .60   7.20 
1953 09 17.90   3.10  10.50 
1953 10 20.29   7.40  13.85 
1953 11 24.70   9.50  17.10 
1953 12 29.20  13.20  21.20 
1954 01 22.40  13.30  17.85 
1954 02 23.00  15.30  19.15 
1954 03 26.20  12.30  19.25 
1954 04 20.20   9.60  14.90 
1954 05 15.30   4.19   9.75 
1954 06 12.60   2.30   7.45 
1954 07 13.10   2.70   7.90 
1954 08 14.90   2.70   8.80 
1954 09 15.70   4.40  10.05 
1954 10 18.60   8.30  13.45 
1954 11 22.30  10.30  16.29 
1954 12 23.20  13.70  18.45 
1955 01 24.00  13.80  18.90 
1955 02 23.30  16.40  19.84 
1955 03 19.60  14.60  17.10 
1955 04 18.60  12.00  15.30 
1955 05 14.20   5.10   9.64 
1955 06 12.10   4.00   8.05 
1955 07 11.00    .10   5.55 
1955 08 14.80   1.80   8.30 
1955 09 16.70   4.90  10.80 
1955 10 19.29   9.80  14.54 
1955 11 23.10   9.60  16.35 
1955 12 23.10  10.80  16.95 
1956 01 23.60  12.50  18.04 
1956 02 21.30  15.00  18.15 
1956 03 20.70  15.60  18.15 
1956 04 20.10   9.70  14.90 
1956 05 14.40   5.80  10.10 
1956 06 11.70   3.10   7.39 
1956 07 12.10    .40   6.25 
1956 08 13.10    .10   6.60 
1956 09 15.40   1.90   8.64 
1956 10 18.60   6.10  12.35 
1956 11 22.90   7.70  15.29 
1956 12 25.30  12.40  18.84 
1965 07 14.62  -2.63   5.99 
1965 09 21.33   6.40  13.86 
1965 10 24.90   9.25  17.07 
1965 11 29.91   6.89  18.40 
1965 12 28.44   7.14  17.79 
1966 01 29.11 -99.99 -99.99 
1966 02 29.84 -99.99 -99.99 
1966 03 27.27 -99.99 -99.99 
1966 04 21.18   7.60  14.39 
1966 05 16.26   1.65   8.95 
1966 06 14.05 -99.99 -99.99 
1966 07 12.79  -1.16   5.81 
1966 08 13.24   2.23   7.73 
1966 09 16.52 -99.99 -99.99 
1966 10 17.69 -99.99 -99.99 
1966 11 21.50   9.09  15.29 
1966 12 23.52  11.85  17.68 
1967 01 24.20  13.36  18.78 
1967 02 23.03  13.62  18.32 
1967 03 18.78  11.04  14.91 
1967 04 16.86   8.21  12.53 
1967 05 13.73   4.35   9.04 
1967 06 11.77   6.47   9.12 
1967 07 11.17    .-7   5.55 
1967 08 11.84 -99.99 -99.99 
1967 09 17.85   2.42  10.13 
1967 10 21.32   8.12  14.71 
1967 11 24.00   7.77  15.88 
1967 12 24.22   9.01  16.61 
1968 01 24.51  13.54  19.02 
1968 02 23.76  12.68  18.22 
1968 04 23.00 -99.99 -99.99 
1968 06 99.99   -.42 -99.99 
1968 07 99.99  -1.75 -99.99 
1968 08 99.99    .65 -99.99 
1968 09 99.99   1.81 -99.99 
1968 10 21.34   5.99  13.66 
1968 11 25.40   8.59  16.99 
1968 12 23.31 -99.99 -99.99 
1969 01 26.72 -99.99 -99.99 
1969 02 24.02 -99.99 -99.99 
1969 03 23.18  10.83  17.00 
1969 04 21.65   5.17  13.41 
1969 05 16.32   4.57  10.44 
1969 06 14.13   1.21   7.67 
1969 07 13.68 -99.99 -99.99 
1969 08 16.16 -99.99 -99.99 
1969 09 14.94 -99.99 -99.99 
1969 10 19.15 -99.99 -99.99 
1969 11 20.95 -99.99 -99.99 
1969 12 25.50 -99.99 -99.99 
1970 07 14.54  -2.90   5.82 
1970 08 14.72   -.15   7.28 
1970 09 16.19    . 9   8.14 
1970 10 21.48   5.64  13.56 
1970 11 20.67  13.50  17.08 
1970 12 23.23  18.62  20.92 
1971 01 24.42  19.28  21.85 
1971 02 23.30  16.26  19.77 
1971 03 20.28  15.22  17.75 
1971 04 17.99   6.30  12.14 
1971 05 15.23    .84   8.03 
1971 06 13.58  -1.41   6.08 
1971 07 11.99  -2.63   4.67 
1971 08 13.57   1.35   7.46 
1971 09 16.46   3.84  10.15 
1971 10 21.05   6.37  13.70 
1971 11 20.43   7.51  13.97 
1971 12 22.96  11.02  16.99 
1972 01 22.08  11.56  16.82 
1972 02 19.28  12.19  15.73 
1972 03 21.49   9.82  15.65 
1972 04 18.12   4.87  11.50 
1972 05 13.92   5.41   9.66 
1972 06 99.99   1.73 -99.99 
1972 07 12.62  -2.59   5.01 
1972 08 13.99    .50   7.24 
1972 09 18.81   3.23  11.02 
1972 10 19.92   7.33  13.62 
1972 11 21.67   9.58  15.62 
1972 12 25.58  12.22  18.90 
1973 01 24.88  15.50  20.18 
1973 02 24.42  14.67  19.54 
1973 03 24.04  11.69  17.86 
1973 04 19.61   8.14  13.88 
1973 05 18.31   4.10  11.20 
1973 08 17.37   1.68   9.53 
1973 09 19.08   4.57  11.82 
1973 10 99.99   7.88 -99.99 
1973 11 23.50   8.24  15.87 
1973 12 23.20  12.83  18.01 
1974 01 20.94  14.51  17.72 
1974 02 22.94  13.35  18.14 
1974 03 20.69  12.57  16.63 
1974 04 19.91  10.26  15.08 
1974 05 99.99   5.75 -99.99 
1974 06 12.33   1.70   7.01 
1974 07 11.27    .75   6.01 
1974 08 99.99   5.31 -99.99 
