56% (2005)

74% (2005)

54% (2002)

71% (2004)

57% (2004)

52% (2008)

43% (2007)

64% (2006)

48% (2003)

41% (2009)

41% (2004)

52% (2009)

32% (2001)

43% (2002)

50% (2005)

76% (2002)

38% (2001)

64% (2002)

59% (2006)

79% (2007)