1895

1,000,000

1944

10,000,000

1963

20,000,000

1971

33,000,000

1982

45,000,000

1902

2,000,000

1947

11,000,000

1964

21,000,000

1972

34,000,000

1984

46,000,000

1908

3,000,000

1950

12,000,000

1965

22,000,000

1973

36,000,000

1985

48,000,000

1912

4,000,000

1952

13,500,000

1966

23,000,000

1974

38,000,000

1986

49-50,000,000

1916

5,000,000

1954

14,000,000

1967

25,000,000

1975

39,000,000

1989

51,000,000

1923

6,000,000

1956

15,000,000

1968

26,000,000

1977

40,000,000

52m not used...

1929

7,000,000

1958

16,000,000

1969

28,000,000

1978

41,000,000

1991

53,000,000

1935

8,000,000

1960

17,000,000

1970

29,000,000

1979

42,000,000

1993

54,000,000

1939

9,000,000

1961

18,000,000

1970

32,000,000

1980

44,000,000

1995

55,000,000

1962

19,000,000

1998

56,000,000