56% (2010)

70% (2014)

79% (2005)

65% (2010)

60% (2012)

72% (2010)

56% (2007)

74% (2012)

64% (2005)

69% (2008)

0% (2013)

63% (2006)

72% (2008)

69% (2004)

70% (2015)

60% (2013)

65% (2006)

54% (2008)

55% (2007)

69% (2009)