69% (1991)

52% (1999)

71% (2000)

67% (2007)

74% (2008)

77% (2007)

65% (2008)

78% (2005)

76% (1999)

70% (2010)

76% (2016)

81% (1984)

64% (1992)

80% (2018)

65% (2018)

68% (2011)

79% (2021)

80% (2001)

72% (1981)

100% (1979)