40% (1996)

39% (1979)

56% (1987)

30% (1990)

0% (1977)

60% (1998)

59% (1985)

70% (1987)

0% (1962)

40% (1996)

100% (1976)

0% (1982)

0% (1975)

48% (1999)

50% (1998)

45% (1978)

50% (1999)

76% (1977)

40% (1988)

50% (1989)