62% (1963)

60% (1966)

32% (1988)

70% (1966)

10% (1991)

0% (1971)

0% (1975)

38% (1973)

64% (1984)

71% (1993)

70% (1983)

64% (1987)

72% (1978)

0% (1987)

0% (1967)

0% (1968)

76% (1986)

0% (1976)

50% (1981)

30% (1986)