46% (2008)

43% (2009)

63% (2008)

44% (2008)

48% (2008)

67% (2009)

45% (2008)

56% (2008)

57% (2010)

50% (2009)

58% (2005)

61% (2006)

41% (2009)

60% (2009)

52% (2008)

49% (2010)

35% (2005)

34% (2004)

46% (2005)

55% (2006)