75% (2006)

69% (2011)

74% (2002)

65% (2006)

65% (2004)

67% (2007)

70% (2004)

54% (2009)

60% (2011)

66% (2002)

66% (2002)

53% (2003)

64% (2001)

58% (2010)

57% (2008)

68% (2007)

73% (2009)

40% (2003)

80% (2010)

0% (2006)