67% (2008)

66% (2011)

63% (2010)

76% (2010)

63% (2014)

65% (2013)

64% (2012)

56% (2011)

57% (2015)

61% (2007)

54% (2011)

65% (2006)

66% (2010)

55% (2012)

63% (2017)

62% (2010)

44% (2006)

60% (2009)

57% (2006)

59% (2008)