63% (2001)

78% (2004)

69% (1992)

66% (2008)

68% (1999)

74% (1998)

68% (2010)

67% (2010)

67% (2001)

62% (1996)

70% (2006)

40% (2006)

63% (2009)

53% (2002)

59% (2006)

53% (1998)

64% (1998)

57% (2004)

57% (2003)

66% (1995)