0% (1981)

0% (1982)

80% (1981)

0% (1965)

50% (1976)

0% (1979)

80% (1986)

50% (1975)

0% (1979)

0% (1983)

70% (1969)

90% (1989)

80% (1979)

90% (1987)

0% (1982)

0% (1973)

35% (1991)

0% (1972)

0% (1991)

0% (1985)