70% (2007)

67% (2005)

63% (2010)

62% (2006)

72% (2005)

43% (2006)

58% (2006)

66% (2008)

55% (2005)

66% (2007)

59% (2005)

60% (2009)

58% (2008)

67% (2008)

57% (2006)