78% (2011)

66% (2013)

79% (2013)

43% (2009)

61% (2010)

63% (2008)

47% (2012)

73% (2020)

70% (2014)

67% (2015)

30% (2006)

41% (2009)

66% (2012)

56% (2013)

70% (2009)

62% (2016)

53% (2013)

38% (2012)

55% (2011)

60% (2010)