35% (1974)

74% (1965)

70% (1950)

40% (1956)

82% (1966)

74% (1967)

74% (1965)

50% (1951)

65% (1958)

53% (1949)

0% (1965)

70% (1959)

48% (1970)

57% (1973)

50% (1955)

61% (1982)

53% (1989)

49% (1985)

50% (1964)

80% (1990)