76% (1965)

80% (1973)

40% (1962)

69% (1968)

73% (1974)

35% (1973)

69% (1965)

59% (1972)

90% (1962)

47% (1988)

80% (1961)

39% (1959)

31% (1980)

59% (1972)

44% (1986)

65% (1984)

0% (1974)

30% (1990)

46% (1990)

20% (1981)