59% (1969)

71% (1969)

68% (1972)

62% (1969)

60% (1976)

70% (1955)

68% (1975)

55% (1970)

54% (1970)

60% (1973)

50% (1971)

50% (1953)

50% (1978)

0% (1972)

42% (1971)

58% (1956)