57% (1940)

50% (1975)

50% (1974)

60% (1984)

58% (1957)

33% (1985)

69% (1988)

50% (1970)

60% (1972)

0% (1989)

54% (1958)

48% (1973)

10% (1986)

0% (1970)

0% (1957)

70% (1975)

0% (1972)

0% (1988)

0% (1952)

0% (1980)