0% (1977)

60% (1979)

0% (1957)

72% (1976)

35% (1973)

90% (1980)

60% (1988)

60% (1979)

50% (1990)

47% (1986)

70% (1982)

60% (1960)

50% (1973)

0% (1969)

0% (1979)

70% (1978)

30% (1990)

0% (1964)

0% (1989)

100% (1984)