1948 1 . 1948 2 -7.40000 1948 3 -5.50000 1948 4 -8.30000 1948 5 5.60000 1948 6 26.9000 1948 7 37.1000 1948 8 35.2000 1948 9 21.3000 1948 10 15.7000 1948 11 -1.90000 1948 12 -24.1000 1949 1 -61.1000 1949 2 -92.6000 1949 3 -111.100 1949 4 -132.400 1949 5 -159.300 1949 6 -176.000 1949 7 -190.800 1949 8 -179.700 1949 9 -158.400 1949 10 -154.700 1949 11 -158.400 1949 12 -143.600 1950 1 -130.600 1950 2 -109.300 1950 3 -81.5000 1950 4 -45.4000 1950 5 -13.0000 1950 6 25.0000 1950 7 69.4000 1950 8 112.900 1950 9 124.000 1950 10 147.100 1950 11 161.000 1950 12 180.400 1951 1 204.500 1951 2 225.800 1951 3 243.400 1951 4 259.100 1951 5 250.800 1951 6 251.700 1951 7 239.700 1951 8 224.900 1951 9 219.300 1951 10 214.700 1951 11 232.300 1951 12 235.600 1952 1 271.200 1952 2 287.900 1952 3 291.600 1952 4 295.300 1952 5 302.700 1952 6 320.300 1952 7 320.300 1952 8 351.800 1952 9 383.300 1952 10 415.700 1952 11 458.300 1952 12 478.700 1953 1 494.400 1953 2 507.400 1953 3 538.900 1953 4 556.500 1953 5 567.600 1953 6 558.300 1953 7 572.200 1953 8 551.800 1953 9 521.200 1953 10 492.500 1953 11 463.800 1953 12 434.200 1954 1 414.800 1954 2 409.200 1954 3 396.200 1954 4 386.000 1954 5 386.000 1954 6 384.100 1954 7 386.900 1954 8 384.100 1954 9 396.100 1954 10 400.700 1954 11 433.100 1954 12 457.200 1955 1 489.600 1955 2 518.300 1955 3 559.000 1955 4 589.600 1955 5 622.000 1955 6 658.100 1955 7 674.800 1955 8 689.600 1955 9 713.700 1955 10 740.600 1955 11 759.100 1955 12 780.400 1956 1 792.400 1956 2 796.100 1956 3 783.100 1956 4 806.200 1956 5 791.400 1956 6 775.700 1956 7 773.800 1956 8 796.000 1956 9 793.200 1956 10 812.600 1956 11 808.900 1956 12 822.800 1957 1 804.300 1957 2 809.900 1957 3 814.500 1957 4 796.900 1957 5 784.900 1957 6 784.000 1957 7 789.600 1957 8 786.800 1957 9 762.700 1957 10 731.200 1957 11 692.300 1957 12 664.500 1958 1 630.200 1958 2 587.600 1958 3 555.200 1958 4 534.800 1958 5 542.200 1958 6 570.900 1958 7 595.900 1958 8 631.100 1958 9 667.200 1958 10 685.700 1958 11 728.300 1958 12 744.000 1959 1 776.400 1959 2 800.500 1959 3 833.800 1959 4 871.800 1959 5 907.900 1959 6 928.300 1959 7 946.800 1959 8 939.400 1959 9 944.000 1959 10 923.600 1959 11 931.000 1959 12 963.400 1960 1 986.500 1960 2 989.300 1960 3 987.400 1960 4 981.800 1960 5 983.700 1960 6 973.500 1960 7 958.700 1960 8 948.500 1960 9 920.700 1960 10 902.200 1960 11 878.100 1960 12 845.700 1961 1 846.600 1961 2 835.500 1961 3 846.600 1961 4 860.500 1961 5 889.200 1961 6 928.100 1961 7 952.200 1961 8 977.200 1961 9 982.800 1961 10 1016.10 1961 11 1048.50 1961 12 1069.80 1962 1 1067.00 1962 2 1097.60 1962 3 1128.20 1962 4 1159.70 1962 5 1171.70 1962 6 1181.00 1962 7 1188.40 1962 8 1193.00 1962 9 1208.70 1962 10 1199.40 1962 11 1206.80 1962 12 1196.60 1963 1 1217.90 1963 2 1223.50 1963 3 1250.40 1963 4 1267.10 1963 5 1295.80 1963 6 1314.30 1963 7 1340.20 1963 8 1350.40 1963 9 1357.80 1963 10 1373.50 1963 11 1375.40 1963 12 1404.10 1964 1 1409.70 1964 2 1441.20 1964 3 1459.70 1964 4 1481.90 1964 5 1499.50 1964 6 1518.00 1964 7 1540.20 1964 8 1549.50 1964 9 1559.70 1964 10 . 1964 11 . 1964 12 .