76% (2012)

68% (2005)

70% (2010)

71% (2011)

77% (2006)

70% (2003)

63% (2008)

63% (2006)

55% (2005)

52% (2005)

64% (2010)

64% (2005)

69% (2005)

57% (2003)

65% (2002)

0% (2009)

62% (2005)

60% (2010)

58% (2006)

58% (2010)