63% (2001)

78% (2004)

68% (1999)

74% (1998)

67% (2010)

65% (2008)

69% (1992)

68% (2010)

70% (2006)

68% (2004)

67% (2002)

71% (2001)

66% (1995)

60% (1999)

63% (2009)

72% (2005)

66% (2004)

22% (2008)

64% (1998)

57% (2008)