72% (2009)

78% (2014)

63% (2021)

55% (2005)

63% (2005)

71% (2003)

77% (2004)

68% (1984)

71% (1998)

57% (2013)

64% (2013)

78% (2010)

73% (2001)

66% (2008)

67% (2017)

55% (2018)

66% (2006)

57% (2014)

71% (2005)

74% (2001)