77% (2005)

68% (2010)

63% (2006)

53% (2007)

55% (2006)

75% (2008)

64% (2010)

68% (2004)

62% (2004)

68% (2004)

61% (2007)

80% (2011)

67% (2006)

59% (2009)

59% (2004)

63% (2008)

58% (2006)

63% (2005)

64% (2006)

66% (2002)