57% (2009)

60% (2007)

52% (2008)

42% (2006)

0% (2007)

20% (2008)

63% (2008)

64% (2009)

65% (2009)

76% (2008)

54% (2009)

85% (2009)

60% (2009)

52% (2007)

39% (2006)

46% (2008)

0% (2007)

50% (2006)

0% (2010)

50% (2009)