56% (2003)

70% (2006)

80% (1996)

84% (2009)

73% (2014)

74% (2016)

81% (2004)

59% (2008)

70% (2000)

72% (2007)

81% (1992)

66% (2010)

77% (2016)

81% (2019)

80% (2002)

0% (2005)

70% (1970)

67% (2006)

65% (2012)

80% (2017)