46% (2006)

75% (2001)

64% (2004)

54% (2006)

45% (2002)

64% (2004)

81% (2005)

67% (2003)

61% (2004)

71% (2006)

70% (1998)

54% (2005)

67% (2001)

61% (2003)

54% (2002)

63% (2005)

68% (2011)

76% (2005)

61% (2008)

49% (2004)