60% (1970)

74% (2004)

77% (1993)

69% (1989)

0% (2015)

72% (2018)

82% (1997)

84% (2013)

80% (2009)

56% (1992)

80% (1989)

78% (2008)

79% (2000)

0% (2012)

44% (2017)

75% (2013)

50% (2018)

74% (1996)

0% (2011)

82% (2005)