78% (2006)

62% (2001)

68% (2006)

58% (2006)

58% (2006)

62% (2003)

59% (2006)

64% (2005)

46% (2006)

53% (2006)

46% (2006)

59% (2003)

51% (2005)

43% (2004)

57% (2007)

45% (2002)

59% (2006)

54% (2010)

49% (2007)

30% (2003)