75% (2008)

73% (2008)

63% (1999)

68% (2003)

60% (2005)

54% (2007)

58% (1999)

50% (2000)

58% (2005)

63% (2006)

58% (2009)

38% (2005)

47% (2007)

44% (2005)

34% (2007)