78% (1979)

82% (1998)

59% (2009)

66% (1981)

72% (1980)

67% (2009)

73% (1987)

59% (1985)

58% (1990)

63% (1989)

69% (1986)

64% (2003)

58% (1987)

62% (2021)

56% (1988)

56% (1982)

63% (1984)

43% (1986)

74% (1982)

53% (1982)