78% (2006)

61% (2001)

59% (2006)

68% (2006)

58% (2006)

59% (2006)

62% (2003)

63% (2005)

59% (2003)

52% (2006)

45% (2006)

46% (2006)

51% (2005)

57% (2007)

54% (2010)

43% (2004)

59% (2006)

49% (2007)

45% (2002)

30% (2003)