61% (2007)

72% (2008)

59% (2012)

68% (2015)

65% (2010)

69% (2009)

54% (2008)

79% (2005)

70% (2009)

65% (2006)

63% (2006)

64% (2004)

79% (2005)

56% (2007)

64% (2007)

69% (2004)

0% (2013)

69% (2008)

52% (2006)

70% (2005)