20% (1999)

40% (2015)

0% (2016)

70% (1974)

56% (1988)

70% (1988)

65% (1979)

0% (1996)

50% (1994)

0% (2011)

50% (1978)

50% (1980)

58% (2005)

70% (2000)

0% (2014)

0% (2002)

60% (1981)

70% (2005)

80% (2015)

100% (2006)