69% (1979)

71% (1971)

66% (1966)

62% (1968)

60% (1982)

61% (1969)

50% (1963)

50% (1982)

59% (1989)

51% (1972)

56% (1961)

70% (1966)

0% (1965)

25% (1985)

51% (1969)

43% (1958)

30% (1960)

65% (1964)

68% (1967)

52% (1970)