68% (2005)

78% (2006)

77% (2017)

73% (2015)

72% (2013)

54% (2011)

73% (2002)

67% (1999)

81% (2014)

68% (2005)

85% (2015)

68% (2014)

73% (2015)

72% (2013)

82% (2005)

77% (1999)

77% (2014)

85% (1998)

73% (2005)

70% (1999)