71% (2003)

71% (2006)

62% (2003)

60% (2008)

60% (2000)

60% (2010)

58% (2010)

66% (2002)

60% (2008)

66% (2008)

58% (2006)

59% (2008)

53% (2007)

54% (2011)

69% (2006)

65% (1999)

41% (2008)

67% (2007)

66% (2008)

61% (2000)