0% (1982)

85% (1975)

65% (1977)

76% (1983)

0% (1987)

0% (1982)

86% (1976)

86% (1967)

50% (1988)

75% (1991)

53% (1985)

70% (1979)

50% (1986)

50% (1987)

71% (1978)

50% (1980)

0% (1976)

10% (1988)

63% (1980)

0% (1978)