75% (2013)

73% (2013)

69% (2012)

68% (2014)

65% (2012)

73% (1994)

73% (2011)

78% (2012)

63% (1995)

59% (2014)

73% (1999)

64% (2008)

61% (2005)

59% (2011)

59% (2012)

66% (1997)

62% (2013)

72% (2017)

60% (2007)

77% (2016)