55% (1950)

48% (1969)

50% (1962)

50% (1958)

50% (1970)

0% (1949)

69% (1961)

57% (1963)

50% (1980)

50% (1967)

62% (1949)

54% (1955)

55% (1958)

50% (1980)

50% (1957)

50% (1957)

50% (1971)

50% (1964)