73% (2009)

57% (2008)

60% (2009)

75% (2008)

64% (2008)

54% (2008)

61% (2008)

52% (2010)

72% (2008)

61% (2010)

62% (2009)

66% (2011)

60% (2011)

67% (2008)

55% (2010)

59% (2008)

60% (2012)

50% (2009)

60% (2008)

62% (2008)