50% (1988)

70% (1986)

0% (1988)

63% (1968)

80% (1988)

0% (1972)

0% (1973)

72% (1979)

67% (1981)

100% (1989)

0% (1975)

70% (1989)

60% (1979)

75% (1966)

59% (1986)

0% (1982)

60% (1985)

0% (1984)

70% (1977)

40% (1972)