0% (1975)

50% (1988)

37% (1979)

80% (1985)

0% (1980)

80% (1970)

0% (1980)

70% (1982)

10% (1985)

70% (1984)

88% (1982)

80% (1978)

0% (1992)

0% (1975)

30% (1992)

0% (1973)

0% (1968)

0% (1980)

0% (1974)

0% (1989)