1952 01 30.60  15.50  23.05 
1952 02 32.40  15.40  23.90 
1952 03 32.20  16.50  24.35 
1952 04 33.40  17.20  25.30 
1952 05 34.09  16.90  25.50 
1952 06 33.20  17.10  25.15 
1952 07 33.20  17.20  25.20 
1952 08 34.20  17.40  25.80 
1952 09 34.59  17.20  25.90 
1952 10 30.30  16.40  23.34 
1952 11 32.09  15.50  23.80 
1952 12 30.30  15.40  22.84 
1953 01 29.60  20.10  24.85 
1953 02 31.30  19.70  25.50 
1953 03 30.60  20.50  25.55 
1953 04 33.70  21.00  27.35 
1953 05 33.40  21.50  27.45 
1953 06 36.59  21.90  29.25 
1953 07 32.40  23.10  27.75 
1953 08 34.09  22.60  28.34 
1953 09 34.20  22.10  28.15 
1953 10 32.70  21.40  27.05 
1953 11 32.30  21.30  26.80 
1953 12 30.80  20.10  25.45 
1954 01 30.20  19.29  24.75 
1954 02 28.70  21.30  25.00 
1954 03 32.09  19.70  25.90 
1954 04 31.10  20.00  25.55 
1954 05 32.90  20.80  26.85 
1954 06 33.20  20.40  26.80 
1954 11 30.00  20.70  25.35 
1954 12 28.90  19.29  24.09 
1955 01 30.70  18.40  24.55 
1955 02 30.80  18.50  24.65 
1955 03 28.60  20.00  24.30 
1955 04 30.40  20.29  25.34 
1955 05 32.59  20.80  26.70 
1955 06 32.80 -99.99 -99.99 
1955 07 32.50  18.20  25.35 
1955 08 34.00  19.90  26.95 
1955 09 33.09  20.90  27.00 
1955 10 31.40  20.20  25.80 
1955 11 30.90  19.90  25.40 
1955 12 29.80  19.79  24.80 
1956 01 28.30  18.50  23.40 
1956 02 30.40  19.20  24.80 
1956 03 30.60  19.70  25.15 
1956 04 32.50  20.00  26.25 
1956 05 31.40  17.29  24.34 
1956 06 32.09  17.79  24.95 
1956 07 32.09  17.20  24.65 
1956 08 33.09  17.40  25.25 
1956 09 33.70  18.70  26.20 
1956 10 32.50  18.70  25.60 
1956 11 31.40  19.00  25.20 
1956 12 29.20  17.60  23.40 
1957 01 30.10  17.50  23.80 
1957 02 31.50  18.70  25.10 
1957 03 31.90  19.10  25.50 
1957 04 31.90  19.60  25.75 
1957 05 32.09  20.70  26.40 
1957 06 32.40  20.60  26.50 
1957 07 32.50  22.00  27.25 
1957 08 33.90  21.60  27.75 
1957 09 34.40  20.40  27.40 
1957 10 33.70  19.40  26.55 
1957 11 30.80  19.29  25.05 
1957 12 31.80  18.79  25.30 
1958 01 33.20  21.20  27.20 
1958 02 33.00  23.20  28.10 
1958 03 35.59  24.10  29.84 
1958 04 33.20  24.30  28.75 
1958 05 32.59  22.30  27.45 
1958 06 33.30  25.00  29.15 
1958 07 33.90  24.90  29.40 
1958 08 34.59  24.90  29.75 
1958 09 34.20  22.70  28.45 
1958 10 34.70  24.30  29.50 
1958 11 32.20  24.00  28.10 
1958 12 32.80  24.10  28.45 
1959 01 31.80  24.00  27.90 
1959 02 32.70  23.40  28.05 
1959 03 34.50  24.30  29.40 
1959 04 33.59  24.10  28.84 
1959 05 32.59  24.20  28.40 
1959 06 31.90  23.90  27.90 
1959 07 33.00  24.40  28.70 
1959 08 34.59  23.80  29.20 
1959 09 35.00  23.50  29.25 
1959 10 33.70  22.50  28.10 
1959 11 32.40  21.40  26.90 
1959 12 31.20  21.50  26.35 
1960 01 32.80  22.60  27.70 
1960 02 33.80  21.80  27.80 
1960 03 33.80  21.70  27.75 
1960 04 32.59  21.80  27.20 
1960 05 33.50  22.90  28.20 
1960 06 34.00  23.40  28.70 
1960 07 34.30  22.50  28.40 
1960 08 33.59  23.10  28.34 
1960 09 34.09  23.00  28.55 
1960 10 35.09  23.00  29.05 
1960 11 99.99  22.40 -99.99 
1960 12 99.99  20.50 -99.99 
