46% (1970)

62% (1965)

45% (1966)

55% (1986)

36% (1969)

63% (1965)

52% (1964)

48% (1981)

43% (1965)

59% (1965)

30% (1965)

61% (1968)

45% (1966)

53% (1966)

58% (1964)

42% (1973)

60% (1966)

55% (1965)

56% (1966)

48% (1972)