62% (2011)

64% (2010)

62% (1994)

74% (2006)

56% (2004)

65% (2008)

58% (2004)

37% (2005)

48% (2011)

56% (1996)

49% (1996)

78% (2001)

48% (2004)

63% (2010)

51% (2008)

42% (2003)

66% (1994)

49% (2007)

71% (1999)

49% (2003)