73% (1982)

73% (2002)

77% (1986)

77% (1981)

76% (1981)

59% (1991)

72% (1979)

46% (1988)

69% (1975)

70% (1982)

66% (1989)

77% (1985)

85% (1988)

61% (1997)

0% (1984)

64% (1995)

100% (1986)

50% (1986)

80% (1973)

70% (1976)