55% (1985)

65% (1969)

45% (1987)

76% (1962)

68% (1981)

68% (1985)

71% (1981)

55% (1974)

62% (1986)

50% (1984)

50% (1995)

60% (1992)

60% (1963)

58% (1965)

56% (1977)

59% (1980)

20% (1991)

55% (1983)

60% (1982)

0% (1965)