54% (1981)

83% (1983)

45% (1982)

71% (1980)

77% (1976)

0% (1984)

72% (1969)

69% (1984)

56% (1970)

0% (1971)

60% (1967)

78% (1965)

54% (1987)

63% (1974)

66% (1986)

28% (1970)

50% (1969)

0% (1975)

52% (2008)

65% (1968)