13251500 1937 21.7 232 1 19370415 2.80 7 13251500 1938 67.5 610 1 19380422 3.00 6 13251500 1939 27.8 272 1 19390404 4.20 1 19381007 13251500 1940 45.1 725 1 19400327 3.70 1 19400822 13251500 1941 36.4 312 1 19410403 5.30 6 13251500 1942 42.7 511 1 19420414 5.20 1 19420907 13251500 1943 51.3 590 1 19430415 5.10 21 13251500 1944 17.2 146 1 19440405 3.00 4 13251500 1945 41.0 361 1 19450421 2.20 3 13251500 1946 47.6 580 1 19460419 1.10 1 19451008 13251500 1947 44.0 346 1 19461214 3.40 1 19470902 13251500 1948 59.5 628 1 19480422 5.20 4 13251500 1949 37.2 309 1 19490420 3.40 6 13251500 1950 44.0 363 1 19500422 4.00 3 13251500 1951 46.4 450 1 19510406 5.70 5 13251500 1952 66.1 722 1 19520427 6.00 2 13251500 1953 48.7 500 1 19530423 4.80 1 19521018 13251500 1954 46.7 476 1 19540414 5.60 1 19531029 13251500 1955 28.8 344 1 19550506 3.10 1 19550126 13251500 1956 63.1 1040 1 19551222 6.00 6 13251500 1957 46.8 392 1 19570414 4.40 2 13251500 1958 49.3 600 1 19580418 0.80 1 19580921 13251500 1959 33.0 305 1 19590406 0.60 1 19581007 13251500 1960 36.9 421 1 19600407 1.50 1 19600909 13251500 1961 43.5 388 1 19610404 4.00 1 19601005 13251500 1962 36.7 407 1 19620416 1.10 1 19620625 13251500 1963 41.3 284 1 19630407 4.20 1 19630730 13251500 1964 46.1 412 1 19640501 1.00 2 13251500 1965 67.3 876 1 19650421 3.50 1 19641009 13251500 1966 28.6 326 1 19660411 3.70 1 19660911 13251500 1967 47.2 407 1 19670510 2.40 1 19661004 13251500 1968 31.1 168 1 19680405 3.20 1 19671105 13251500 1969 48.5 415 1 19690413 4.70 1 19690826 13251500 1970 49.9 457 1 19700124 4.50 1 19691203 13251500 1971 66.4 555 1 19710505 3.40 1 19701028 13251500 1975 42.8 632 1 19750516 1.20 1 19750916