57% (2009)

59% (2007)

52% (2007)

42% (2006)

64% (2009)

63% (2008)

35% (2008)

46% (2008)

65% (2009)

0% (2009)

50% (2006)

76% (2008)

0% (2009)

20% (2008)

52% (2008)

60% (2009)

0% (2010)

55% (2006)

0% (2005)

0% (2005)