45% (1981)

80% (1975)

0% (1984)

10% (1970)

0% (1968)

0% (1985)

0% (1991)

47% (1984)

0% (1986)

0% (1963)

0% (1987)

70% (1982)

0% (1983)

0% (1977)

0% (1989)

0% (1980)

0% (1979)

0% (1986)

0% (1983)

0% (1980)