76% (2013)

73% (2011)

73% (1999)

56% (2015)

69% (2016)

74% (2013)

65% (2004)

59% (2006)

66% (2009)

57% (2004)

50% (2016)

71% (1993)

61% (2018)

72% (2018)

73% (2002)

67% (1996)

63% (1995)

68% (2015)

65% (1997)

68% (2009)