50% (1982)

51% (1978)

75% (1976)

53% (1956)

50% (1967)

60% (1972)

0% (1990)

38% (1945)

51% (1974)

64% (1978)

37% (1982)

60% (1989)

34% (1978)

53% (1966)

54% (1980)

20% (1988)

46% (1980)

58% (1983)

46% (1971)

52% (1961)