83% (2012)

66% (2010)

70% (2006)

71% (2014)

80% (2015)

61% (2008)

71% (2015)

75% (2009)

53% (1996)

64% (2016)

69% (2013)

74% (2009)

67% (2011)

71% (2006)

77% (2016)

67% (2017)

69% (2002)

64% (2018)

65% (1996)

68% (2006)