64% (2004)

75% (2010)

72% (2007)

76% (2003)

70% (2005)

80% (2009)

61% (2003)

63% (2009)

66% (2013)

73% (2015)

66% (2004)

63% (2006)

60% (2001)

63% (2002)

71% (2007)

67% (2000)

68% (2000)

58% (2001)

71% (2013)

72% (2002)