80% (1986)

68% (1972)

40% (1991)

83% (1988)

64% (1983)

70% (1972)

85% (1986)

80% (1985)

0% (1987)

0% (1984)

0% (1979)

89% (1962)

85% (1988)

80% (1982)

0% (1989)

67% (1981)

0% (1988)

70% (1987)

85% (1981)

34% (1987)