70% (1981)

0% (1990)

70% (1973)

80% (1987)

62% (1957)

0% (1939)

37% (1973)

50% (1989)

66% (1954)

100% (1987)

90% (1976)

50% (1984)

40% (1972)

80% (1976)

0% (1984)

32% (1932)

56% (1978)

30% (1975)

0% (1985)

0% (1985)