10% (1973)

67% (1966)

63% (1967)

45% (1975)

37% (1972)

45% (1983)

60% (1968)

52% (1975)

60% (1989)

0% (1982)

80% (1987)

53% (1970)

60% (1951)

51% (1976)

32% (1984)

80% (1977)

48% (1980)

0% (1982)

0% (1959)

50% (1984)