74% (2006)

85% (1999)

65% (2010)

81% (2016)

56% (2009)

58% (2007)

75% (2004)

76% (2014)

74% (2012)

71% (2010)

69% (2003)

67% (2002)

58% (2011)

75% (2000)

77% (2015)

61% (2015)

63% (2009)

53% (2015)

62% (1999)

70% (2002)