1934 242400 1935 511400 1936 349900 1937 516700 1938 445500 1939 468800 1940 278100 1941 252100 1942 460000 1943 580600 1944 439500 1945 568000 1946 511500 1947 532000 1948 449200 1949 535700 1950 679000 1951 661600 1952 604000 1953 372100 1954 262600 1955 399800 1956 392700 1957 431100 1958 528900 1959 370200 1960 479000 1961 478900 1962 562100 1963 342000 1964 329900 1965 459400 1966 379000 1967 441000 1968 460000 1969 491600 1970 464900 1971 464200 1972 499300 1973 787600 1974 703600 1975 637400 1976 421800 1977 331800 1978 576900 1979 684300 1980 526400 1981 398600 1982 544400 1983 666800 1984 646400 1985 544000 1986 527300 1987 498200 1988 335600 1989 530700 1990 560500