69% (2008)

72% (2010)

63% (2009)

62% (2008)

70% (2008)

66% (2008)

60% (2009)

62% (2005)

69% (2008)

57% (2009)

64% (2008)

62% (2010)

63% (2008)

64% (2009)

61% (2009)

64% (2009)

69% (2009)

56% (2009)

68% (2008)

59% (2007)