69% (2007)

43% (2006)

60% (2009)

62% (2006)

55% (2005)

66% (2005)

66% (2008)

67% (2008)

59% (2005)

58% (2006)

66% (2007)

72% (2005)

63% (2010)

57% (2006)

58% (2008)