67% (2008)

66% (2011)

63% (2010)

63% (2014)

65% (2013)

75% (2010)

64% (2012)

64% (2017)

54% (2011)

57% (2015)

56% (2011)

61% (2007)

66% (2010)

56% (2011)

55% (2012)

62% (2009)

60% (2009)

61% (2009)

65% (2006)

57% (2006)