50% (2014)

60% (2013)

0% (1976)

71% (1990)

76% (1996)

66% (2001)

0% (1975)

61% (2002)

90% (1985)

58% (2009)

80% (2012)

78% (2015)

61% (2002)

76% (2017)

0% (1978)

0% (1979)

70% (1998)

70% (2013)

0% (1983)

65% (2016)