73% (2008)

45% (1975)

64% (1996)

67% (1977)

64% (1980)

71% (1988)

40% (1962)

67% (2011)

45% (2008)

50% (1986)

0% (1975)

50% (1998)

50% (1974)

60% (1976)

57% (1985)

77% (2010)

62% (1990)

0% (1981)

0% (1984)

0% (1977)