30% (1986)

77% (1978)

0% (1970)

58% (1965)

64% (1976)

0% (1989)

80% (1960)

28% (2001)

87% (1980)

90% (1985)

66% (2001)

76% (1988)

64% (1965)

0% (1971)

55% (1972)

52% (1954)

20% (2006)

85% (1969)

62% (1982)

64% (1972)