71% (1989)

70% (1995)

63% (2024)

64% (2007)

66% (1996)

64% (2016)

81% (1975)

74% (2000)

77% (2024)

56% (2010)

65% (2016)

64% (1971)

63% (2017)

72% (2010)

72% (2011)

56% (2009)

63% (2018)

63% (2006)

68% (1993)

77% (2000)