66% (2008)

63% (2010)

46% (2006)

59% (2006)

41% (2007)

16% (2008)

43% (2006)

44% (2011)

52% (2012)

60% (2002)

15% (2006)

39% (2006)

64% (2004)

10% (2002)

10% (2009)

10% (2002)

46% (2009)

23% (2012)

10% (2008)

10% (2007)