62% (2011)

64% (2010)

56% (2004)

64% (2008)

37% (2005)

48% (2004)

62% (1994)

63% (2010)

74% (2006)

51% (2008)

58% (2004)

49% (2003)

69% (2003)

37% (2007)

57% (1996)

50% (2003)

48% (2011)

60% (1997)

60% (2000)

78% (2001)