47% (1970)

64% (1965)

55% (1986)

62% (1965)

60% (1965)

58% (1964)

48% (1981)

36% (1969)

53% (1966)

71% (1957)

54% (1966)

62% (1965)

55% (1973)

0% (1985)

55% (1965)

77% (1966)

51% (1972)

56% (1965)

45% (1965)

37% (1963)