61% (2003)

64% (2000)

59% (2008)

74% (2017)

62% (2012)

58% (2012)

57% (2011)

78% (2010)

69% (2011)

71% (2010)

67% (2009)

70% (2006)

63% (2005)

71% (2004)

64% (2008)

67% (2008)

63% (2012)

65% (2012)

56% (2014)

65% (2005)