85% (1966)

81% (1965)

45% (1980)

56% (1980)

70% (1967)

52% (1975)

62% (1972)

50% (1967)

51% (1973)

41% (1977)

72% (1960)

56% (1965)

56% (1979)

46% (1970)

0% (1964)

15% (1981)

43% (1976)

40% (1966)

52% (1978)

10% (1976)