81% (2009)

60% (2008)

59% (2009)

60% (2009)

40% (2009)

54% (2009)

52% (2008)

64% (2008)

45% (2009)

52% (2008)

43% (2008)

40% (2007)

45% (2008)

40% (2008)

50% (2008)

48% (2008)

71% (2012)