35% (1975)

60% (1960)

50% (1964)

45% (1970)

50% (1982)

57% (1974)

62% (1968)

50% (1959)

0% (1976)

33% (1985)

60% (1958)

70% (1960)

0% (1959)

47% (1960)

23% (1967)

45% (1968)

10% (1966)

50% (1957)