77% (2004)

71% (2009)

65% (2012)

71% (1996)

70% (2003)

74% (2001)

79% (2013)

49% (2004)

86% (2001)

65% (2002)

71% (2011)

69% (2007)

65% (2017)

0% (1999)

40% (1996)

78% (2010)

63% (2000)

75% (2002)

83% (2001)

80% (2005)