70% (2017)

69% (2013)

68% (2014)

74% (2015)

73% (2002)

55% (2015)

61% (2010)

75% (2006)

64% (2009)

71% (2010)

69% (2012)

56% (2015)

62% (2015)

67% (2009)

55% (2005)

57% (2010)

59% (2006)

54% (2009)

54% (2010)

55% (2008)