67% (2015)

76% (2013)

26% (2011)

72% (2012)

40% (2012)

70% (2014)

54% (2015)

10% (2013)

50% (2013)

75% (2014)

40% (2015)

90% (2008)

72% (2011)

68% (2007)

45% (2011)

58% (2015)

55% (2009)

67% (2014)

60% (2011)

66% (2015)