69% (1944)

59% (1974)

39% (1988)

53% (1964)

50% (1961)

62% (1983)

37% (1966)

70% (1983)

61% (1964)

0% (1988)

50% (1974)

57% (1971)

58% (1960)

40% (1984)

70% (1962)

51% (1988)

0% (1990)

48% (1980)

64% (1978)

38% (1981)