59% (1973)

54% (1983)

0% (1959)

65% (1967)

58% (1971)

58% (1972)

50% (1985)

50% (1972)

63% (1969)

0% (1969)

0% (1972)

0% (1982)

60% (1979)

50% (1977)

51% (1969)

62% (1970)

80% (1962)

0% (1956)

57% (1980)

65% (1976)