0% (1982)

80% (1978)

80% (1975)

70% (1971)

90% (1986)

55% (1988)

50% (1991)

0% (1976)

60% (1980)

60% (1989)

70% (1982)

80% (1967)

52% (1986)

90% (1987)

90% (1972)

0% (1982)

67% (1982)

60% (1966)

65% (1980)

0% (1985)