73% (2008)

45% (1975)

64% (1996)

62% (1990)

71% (1988)

50% (1986)

67% (1977)

0% (1978)

45% (2008)

67% (2011)

57% (1985)

64% (1980)

0% (1977)

0% (1981)

50% (1998)

50% (1992)

0% (1979)

0% (1975)

50% (1983)

50% (1994)