56% (1985)

77% (1962)

65% (1969)

50% (1984)

60% (1992)

68% (1981)

58% (1965)

68% (1985)

71% (1981)

45% (1987)

50% (1995)

0% (1965)

59% (1980)

60% (1982)

56% (1977)

56% (1974)

20% (1991)

55% (1983)

35% (1978)

60% (1963)