50% (1972)

53% (1966)

0% (1970)

52% (1978)

70% (1978)

50% (1980)

62% (1965)

62% (1965)

59% (1975)

60% (1967)

66% (1965)

70% (1966)

50% (1971)

61% (1968)

0% (1969)

70% (1965)

50% (1976)

50% (1973)

51% (1969)

58% (1967)