87% (2024)

84% (2022)

86% (2018)

81% (1989)

82% (2011)

80% (2024)

86% (2004)

74% (1999)

64% (1996)

85% (1994)

82% (1998)

59% (2014)

84% (2015)

74% (2003)

84% (2022)

70% (2005)

79% (2009)

87% (2013)

86% (2005)

53% (2014)