77% (1966)

57% (1968)

71% (1957)

59% (1965)

58% (1967)

30% (1965)

55% (1973)

61% (1968)

55% (1966)

70% (1960)

53% (1966)

57% (1955)

70% (1965)

56% (1964)

0% (1967)

64% (1965)

55% (1965)

0% (1986)

42% (1973)

0% (1985)