57% (2009)

59% (2007)

52% (2007)

42% (2006)

0% (2009)

52% (2008)

85% (2009)

65% (2009)

76% (2008)

0% (2007)

63% (2008)

0% (2007)

65% (2009)

54% (2009)

0% (2009)

0% (2008)

46% (2008)

0% (2007)

60% (2009)

55% (2006)