90% (1987)

51% (1984)

50% (1987)

80% (1977)

0% (1981)

49% (1966)

0% (1956)

73% (1987)

60% (1987)

40% (1983)

35% (1974)

52% (1972)

0% (1954)

62% (1986)

50% (1987)

0% (1988)

0% (1978)

50% (1978)

70% (1984)

0% (1956)