0% (1983)

60% (1984)

39% (1977)

0% (1987)

20% (1962)

37% (1990)

60% (1982)

0% (1977)

63% (1981)

50% (1988)

0% (1971)

70% (1968)

0% (1989)

40% (1926)

0% (1991)

38% (1971)

0% (1984)

80% (1985)

0% (1982)

90% (1980)