06311000 1947 19.2 250 1 19470505 2.00 90 06311000 1948 13.0 130 2 2.00 60 06311000 1949 13.8 126 1 19490612 0.80 31 06311000 1950 12.2 110 1 19500523 1.30 59 06311000 1951 10.7 89.0 1 19510518 1.70 4 06311000 1952 15.5 171 1 19520503 1.20 1 19520122 06311000 1953 12.9 354 1 19530615 1.50 1 19521124 06311000 1954 7.15 98.0 1 19540510 1.40 1 19531120 06311000 1955 14.2 159 1 19550615 1.80 47 06311000 1956 11.2 152 1 19560528 2.00 15 06311000 1957 15.5 169 1 19570610 2.10 1 19561105 06311000 1958 13.0 190 1 19580508 2.70 1 19580923 06311000 1959 12.7 112 1 19590607 1.00 28 06311000 1960 8.00 88.0 1 19600423 1.50 16 06311000 1961 6.91 110 1 19610511 0.60 6 06311000 1962 20.8 186 1 19620507 2.20 20 06311000 1963 17.6 222 1 19630602 1.60 4 06311000 1964 18.7 217 1 19640522 1.20 3 06311000 1965 18.6 181 1 19650616 1.00 2 06311000 1966 7.88 132 1 19660507 1.00 6 06311000 1967 26.7 342 1 19670525 0.70 1 19661223 06311000 1968 21.7 351 1 19680609 1.50 24 06311000 1969 14.2 150 1 19690423 2.60 2 06311000 1970 14.0 227 1 19700521 0.80 4 06311000 1971 16.0 292 1 19710529 1.00 1 19710104 06311000 1972 12.1 150 1 19720602 2.00 2 06311000 1973 12.6 170 1 19730519 1.30 1 19730207 06311000 1974 11.1 97.0 2 1.00 1 19740110 06311000 1975 21.9 250 1 19750607 1.30 1 19750127 06311000 1976 16.8 202 1 19760520 1.80 1 19760302 06311000 1977 12.3 170 1 19770510 1.10 1 19770320 06311000 1978 26.2 282 1 19780610 1.50 4 06311000 1979 14.4 132 1 19790524 2.30 4 06311000 1980 10.9 78.0 1 19800530 1.50 2 06311000 1981 10.5 144 1 19810527 1.00 1 19810210 06311000 1982 18.8 168 1 19820617 1.40 1 19820204 06311000 1983 18.1 255 1 19830527 2.40 19 06311000 1984 19.7 207 1 19840531 1.40 3 06311000 1985 9.63 82.0 1 19850503 1.70 1 19850331 06311000 1986 15.0 181 1 19860504 1.80 2 06311000 1987 13.4 129 1 19870425 2.00 1 19870329 06311000 1988 10.9 200 1 19880513 1.40 5