77% (2016)

66% (2016)

76% (2014)

78% (2017)

72% (2005)

69% (2006)

67% (1998)

69% (1999)

58% (2003)

75% (2008)

61% (2009)

56% (2008)

59% (2001)

65% (2006)

65% (2013)

60% (2006)

63% (2009)

71% (2000)

73% (2011)

65% (2006)