56% (1975)

62% (1976)

0% (1980)

74% (1964)

50% (1990)

60% (1978)

43% (1987)

55% (1986)

50% (1965)

0% (1987)

75% (1963)

0% (1984)

0% (1962)

40% (1976)

0% (1984)

60% (1981)

80% (1978)

0% (1988)

70% (1982)

48% (1973)