62% (2011)

64% (2010)

56% (2004)

64% (2008)

62% (1994)

58% (2004)

37% (2005)

48% (2004)

60% (1997)

60% (2000)

63% (2010)

74% (2006)

49% (2003)

69% (2003)

57% (1996)

48% (2011)

37% (2007)

62% (1998)

48% (2005)

53% (2003)