50% (1974)

62% (1982)

40% (1979)

50% (1988)

60% (1979)

20% (1967)

0% (1971)

80% (1972)

44% (1949)

52% (1983)

0% (1979)

0% (1973)

63% (1970)

0% (1956)

50% (1979)

0% (1981)

0% (1981)

49% (1966)

0% (1970)

57% (1956)