71% (2012)

65% (2014)

69% (2017)

69% (2006)

58% (2014)

80% (2005)

84% (1995)

70% (1998)

66% (1999)

78% (1996)

80% (1998)

69% (2008)

64% (1997)

58% (2004)

68% (2001)

70% (2016)

73% (1999)

69% (2009)

75% (2000)

62% (2017)