75% (2006)

67% (2007)

74% (2002)

69% (2011)

71% (2004)

60% (2011)

54% (2009)

65% (2006)

66% (2002)

65% (2004)

65% (2001)

67% (2002)

53% (2003)

57% (2010)

80% (2010)

57% (2008)

41% (2003)

73% (2009)

0% (2002)

0% (2002)