56% (1985)

65% (1969)

77% (1962)

60% (1992)

68% (1981)

56% (1977)

68% (1985)

20% (1991)

50% (1984)

59% (1980)

56% (1974)

45% (1987)

60% (1982)

70% (1981)

0% (1965)

55% (1983)

37% (1973)

60% (1963)

50% (1995)

85% (2007)