72% (2019)

83% (2015)

79% (2013)

67% (2011)

75% (2009)

73% (2010)

76% (2009)

78% (2007)

63% (2007)

77% (2006)

67% (2009)

66% (2005)

70% (2004)

75% (2013)

59% (2004)

67% (2016)

56% (2007)

69% (2011)

57% (2009)

71% (2005)