64% (1965)

46% (1970)

55% (1965)

55% (1986)

28% (1984)

58% (1964)

62% (1965)

51% (1972)

53% (1966)

48% (1981)

45% (1972)

43% (1965)

59% (1965)

45% (1965)

0% (1967)

36% (1969)

51% (1965)

52% (1964)

60% (1965)

30% (1965)