76% (2013)

70% (2002)

75% (2011)

83% (2002)

70% (2014)

73% (2016)

67% (2016)

78% (2004)

65% (1981)

65% (2010)

45% (1994)

100% (1978)

0% (1983)

75% (2008)

71% (1987)

85% (2016)

97% (2013)

70% (1996)

0% (2017)

50% (2006)