58% (2014)

60% (2012)

69% (2011)

68% (2014)

66% (2004)

72% (2012)

61% (2005)

48% (2004)

61% (2009)

64% (2004)

66% (2015)

58% (2006)

66% (2015)

66% (2007)

69% (2007)

63% (2004)

47% (2006)

70% (2011)

63% (2008)

66% (2006)