72% (1967)

78% (1969)

0% (1966)

60% (1980)

69% (1967)

0% (1973)

20% (1972)

20% (1971)

37% (1977)

0% (1976)

35% (1967)

71% (1958)

59% (1965)

0% (1980)

46% (1973)

50% (1982)

58% (1978)

67% (1984)

66% (1959)

0% (1978)