74% (1999)

82% (2011)

49% (2014)

79% (2007)

61% (2017)

79% (2009)

73% (2018)

71% (2019)

78% (2021)

62% (1993)

55% (2014)

81% (2017)

80% (2002)

65% (2006)

87% (2013)

48% (1961)

63% (1996)

86% (1989)

85% (1994)

79% (2006)