46% (1980)

60% (1984)

90% (1968)

60% (1969)

0% (1973)

100% (1966)

47% (1988)

20% (1990)

58% (1977)

90% (1982)

0% (1982)

59% (1972)

73% (1977)

50% (1982)

80% (1986)

68% (1973)

0% (1990)

85% (1983)

80% (1977)

50% (1985)