76% (2008)

61% (2014)

59% (2009)

61% (2010)

54% (2009)

73% (2013)

64% (2009)

59% (2013)

54% (2009)

65% (2006)

64% (2012)

73% (2008)

70% (2007)

59% (2014)

53% (2015)

56% (2012)

59% (2012)

59% (2009)

65% (2010)

64% (2009)