45% (1976)

45% (1983)

70% (1983)

76% (1959)

59% (1983)

0% (1931)

56% (1971)

35% (1981)

48% (1987)

80% (1957)

71% (1979)

58% (1987)

34% (1949)

70% (1964)

54% (1985)

71% (1974)

0% (1986)

59% (1973)

53% (1985)

60% (1978)