73% (2009)

57% (2008)

54% (2008)

65% (2008)

62% (2008)

72% (2008)

50% (2009)

53% (2010)

67% (2008)

67% (2011)

63% (2009)

55% (2010)

60% (2011)

61% (2010)

75% (2008)

59% (2008)

60% (2009)

59% (2008)

60% (2012)

61% (2008)