81% (2009)

60% (2008)

59% (2009)

55% (2009)

43% (2008)

61% (2009)

52% (2008)

49% (2008)

40% (2009)

44% (2009)

40% (2008)

64% (2008)

50% (2008)

48% (2008)

47% (2008)

30% (2007)

71% (2012)