70% (1961)

50% (1981)

54% (1962)

63% (1988)

46% (1935)

50% (1986)

56% (1970)

22% (1967)

66% (1954)

0% (1973)

50% (1980)

56% (1967)

59% (1967)

60% (1973)

37% (1972)

70% (1983)

61% (1964)

0% (1988)

50% (1980)

60% (1986)