79% (2011)

57% (2007)

54% (1993)

80% (1990)

59% (2013)

83% (2010)

70% (2003)

67% (2013)

80% (2008)

82% (2007)

77% (1993)

70% (2006)

68% (2008)

0% (2004)

66% (2005)

72% (1999)

76% (1989)

81% (2014)

76% (2004)

70% (1994)