50075000 1946 11.8 215 1 19460224 1.50 2 50075000 1947 14.5 225 1 19461209 2.00 4 50075000 1948 18.1 340 1 19480902 2.20 1 19480430 50075000 1949 17.8 375 1 19490921 2.20 1 19481130 50075000 1950 19.8 320 1 19500823 2.00 1 19491025 50075000 1951 15.1 300 1 19501112 2.30 35 50075000 1952 21.1 265 1 19520112 2.10 1 19520127 50075000 1980 12.9 114 1 19800411 4.20 8 50075000 1981 13.9 89.0 1 19810525 4.20 2 50075000 1982 14.4 145 1 19820509 3.90 2 50075000 1983 12.8 267 1 19830421 3.20 1 19830426 50075000 1984 11.2 102 1 19840826 4.00 25 50075000 1985 13.9 124 1 19850514 3.70 1 19850713 50075000 1986 14.0 239 1 19851006 4.20 2 50075000 1987 12.4 147 1 19870412 3.90 5 50075000 1988 15.5 220 1 19871207 4.00 1 19880618