75% (2001)

66% (2004)

70% (2002)

68% (2007)

71% (2005)

64% (2005)

69% (2005)

57% (2005)

67% (2002)

71% (2002)

68% (2007)

69% (2006)

61% (2002)

61% (2009)

58% (2006)

58% (2007)

62% (2004)

66% (2006)

85% (2009)