78% (2004)

67% (2013)

61% (2014)

70% (2004)

57% (2018)

69% (2005)

72% (2001)

71% (2012)

67% (2007)

74% (2016)

62% (2011)

69% (2013)

69% (2008)

69% (2006)

77% (2017)

63% (2013)

67% (2008)

61% (2013)

57% (2011)

50% (2014)