58% (2009)

80% (1999)

74% (2009)

68% (2003)

77% (2002)

66% (2008)

61% (2005)

56% (2007)

69% (2010)

62% (2010)

55% (2008)

72% (2009)

65% (2008)

61% (2005)

67% (2005)

72% (2012)

77% (2005)

63% (2002)

60% (2008)

71% (2006)