68% (2014)

71% (2009)

64% (2006)

61% (2012)

69% (2016)

61% (2006)

78% (2011)

56% (2008)

58% (2004)

65% (2005)

83% (2008)

62% (2007)

57% (2009)

60% (2014)

69% (2008)

43% (2014)

56% (2007)

60% (2007)

53% (2009)

70% (2015)