61% (2015)

75% (2016)

62% (2015)

76% (1999)

70% (2004)

72% (2000)

50% (2003)

77% (1997)

73% (2003)

70% (2010)

78% (2006)

76% (2002)

59% (2009)

65% (2010)

61% (2005)

74% (2001)

74% (2006)

64% (2007)

67% (2006)

50% (2003)