50% (1973)

10% (1980)

100% (1954)

50% (1973)

39% (1989)

80% (1976)

50% (1974)

80% (1976)

20% (1959)

60% (1957)

80% (1959)

100% (1985)

60% (1969)

0% (1991)

0% (1965)

90% (1983)

70% (1974)

60% (1941)

60% (1959)

58% (1960)