43% (2009)

56% (2008)

46% (2008)

50% (2009)

45% (2008)

39% (2002)

67% (2009)

64% (2007)

61% (2009)

40% (2004)

48% (2008)

63% (2008)

54% (2008)

44% (2008)

57% (2010)

60% (2009)

52% (2004)

40% (2007)

52% (2008)

49% (2010)