75% (2012)

67% (2005)

69% (2003)

56% (2005)

71% (2011)

63% (2006)

64% (2005)

76% (2006)

67% (2002)

57% (2010)

71% (2010)

63% (2008)

56% (2003)

52% (2005)

65% (2002)

69% (2005)

62% (2005)

56% (2006)

55% (2008)

60% (2010)