78% (2006)

62% (2001)

44% (2006)

63% (2005)

58% (2006)

68% (2006)

59% (2006)

58% (2006)

53% (2006)

62% (2003)

59% (2003)

30% (2003)

57% (2007)

51% (2005)

46% (2006)

20% (2003)

43% (2004)

45% (2002)

54% (2010)

49% (2007)