73% (1986)

64% (1985)

25% (1984)

80% (1979)

70% (1967)

80% (1961)

60% (1977)

66% (1976)

70% (1967)

90% (1965)

0% (1968)

0% (1975)

0% (1964)

0% (1960)

0% (1973)

65% (1987)

0% (1964)

78% (1974)

40% (1970)

0% (1966)