78% (1979)

82% (1998)

66% (1981)

59% (2009)

72% (1980)

67% (2009)

73% (1987)

69% (1986)

59% (1985)

64% (2003)

56% (1988)

58% (1987)

62% (2021)

56% (1982)

58% (1990)

43% (1986)

63% (1989)

74% (1982)

63% (1984)

44% (1988)