79% (2017)

65% (2021)

55% (2013)

64% (1987)

64% (2013)

62% (2003)

62% (2020)

66% (2001)

59% (1994)

71% (2009)

68% (2003)

72% (2014)

58% (1992)

61% (1995)

57% (1992)

56% (2007)

56% (2010)

35% (1997)

55% (2011)

76% (2018)