1947 12 39.90 -99.99 -99.99 
1948 01 38.90 -99.99 -99.99 
1948 02 37.20 -99.99 -99.99 
1948 03 36.30 -99.99 -99.99 
1948 04 32.00  21.30  26.65 
1948 05 29.40  15.90  22.65 
1948 06 26.20  10.60  18.40 
1948 07 26.00  10.10  18.04 
1948 08 29.30   9.30  19.29 
1948 09 33.00  12.70  22.85 
1948 10 37.50  15.90  26.70 
1948 11 38.20  18.29  28.25 
1948 12 40.50  22.70  31.60 
1949 01 40.90  23.90  32.40 
1949 02 35.30  23.00  29.15 
1949 03 37.59  22.00  29.80 
1949 04 33.20  15.50  24.35 
1949 05 27.40  15.00  21.20 
1949 06 25.60  10.80  18.20 
1949 07 27.40   7.10  17.25 
1949 08 29.40  12.60  21.00 
1949 09 31.50  12.40  21.95 
1949 10 34.70  13.20  23.95 
1949 11 37.09  18.20  27.65 
1949 12 39.70  23.70  31.70 
1950 01 39.30  24.40  31.84 
1950 02 39.20  24.20  31.70 
1950 03 39.30  20.80  30.05 
1950 04 35.30  15.50  25.40 
1950 05 29.20  15.70  22.45 
1950 06 24.00  10.20  17.10 
1950 07 24.90   7.80  16.35 
1950 08 29.20   9.89  19.54 
1950 09 33.40  13.90  23.65 
1950 10 34.40  15.50  24.95 
1950 11 39.20  19.70  29.45 
1950 12 41.30  22.60  31.95 
1951 01 40.90  23.90  32.40 
1951 02 38.80  24.40  31.59 
1951 03 39.59  23.10  31.34 
1951 04 35.80  19.90  27.84 
1951 05 29.10  12.80  20.95 
1951 06 25.60  12.20  18.90 
1951 07 24.80  10.30  17.54 
1951 08 27.40   9.30  18.35 
1951 09 33.40  12.90  23.15 
1951 10 36.20  14.80  25.50 
1951 11 42.50  20.40  31.45 
1951 12 41.30  21.20  31.25 
1952 01 40.20  22.90  31.55 
1952 02 40.59  25.10  32.84 
1952 04 36.40  18.90  27.65 
1952 05 28.40  15.00  21.70 
1952 06 27.90   7.50  17.70 
1952 07 25.20  10.80  18.00 
1952 08 28.10   8.80  18.45 
1952 09 33.20  13.20  23.20 
1952 10 36.00  16.40  26.20 
1952 11 39.00  18.90  28.95 
1952 12 41.10  20.29  30.70 
1953 05 28.80  14.90  21.84 
1955 06 23.30  11.20  17.25 
1955 07 25.50   9.80  17.65 
1955 10 35.59  14.10  24.84 
1955 11 39.09  19.40  29.25 
1955 12 40.59  20.80  30.70 
1956 01 42.50  22.60  32.55 
1956 02 39.59  23.80  31.70 
1956 03 38.09  19.10  28.59 
1956 04 36.40  17.40  26.90 
1956 05 27.90  10.70  19.29 
1956 06 25.20  11.30  18.25 
1956 07 24.20   8.20  16.20 
1956 08 29.20  10.90  20.04 
1956 10 35.70  13.40  24.55 
1956 12 41.80  22.30  32.05 
1965 01 41.39  23.97  32.68 
1965 03 35.21  23.58  29.39 
1965 04 35.86  17.20  26.53 
1965 05 31.87  14.46  23.16 
1965 06 28.49  13.88  21.18 
1965 07 26.01   8.39  17.20 
1965 08 28.72  12.71  20.71 
1965 09 33.38  13.46  23.42 
1965 10 35.90  16.61  26.25 
1965 11 39.38  19.98  29.68 
1965 12 41.07  23.31  32.18 
1966 01 42.18  25.24  33.71 
1966 02 37.91  24.34  31.13 
1966 03 38.96  21.67  30.31 
1967 02 35.91  22.52  29.22 
1967 03 35.90  21.15  28.52 
1967 04 36.39  17.00  26.69 
1967 05 31.28  15.96  23.62 
1967 06 26.77   7.47  17.12 
1967 07 25.97   6.56  16.26 
1967 08 28.38 -99.99 -99.99 
