81% (1984)

78% (1987)

69% (1991)

63% (2002)

75% (1999)

59% (2000)

64% (2000)

72% (1977)

65% (1982)

74% (2011)

72% (1994)

69% (1993)

62% (2005)

64% (2001)

70% (2023)

74% (1995)

44% (1998)

68% (2001)

53% (1997)

58% (1979)