76% (2008)

74% (2008)

62% (1999)

68% (2003)

55% (2007)

60% (2005)

48% (2000)

58% (1999)

63% (2006)

34% (2007)

58% (2005)

38% (2005)

58% (2009)

44% (2005)

47% (2007)