74% (2006)

56% (2009)

72% (2009)

0% (2008)

49% (2008)

61% (2009)

64% (2010)

59% (2007)

65% (2010)

50% (2012)

50% (2007)

40% (2010)

40% (2007)

60% (2006)

38% (2008)

0% (2010)