63% (2006)

77% (2005)

68% (2010)

64% (2010)

75% (2008)

68% (2004)

62% (2005)

53% (2007)

68% (2004)

59% (2004)

55% (2006)

73% (2011)

62% (2004)

80% (2011)

60% (2009)

66% (2002)

64% (2006)

58% (2006)

67% (2006)

45% (2007)