80% (1976)

0% (1967)

50% (1978)

0% (1970)

0% (1977)

0% (1987)

0% (1970)

50% (1968)

0% (1982)

80% (1979)

100% (1975)

80% (1970)

60% (1970)

0% (1972)

80% (1970)

0% (1973)

50% (1970)

0% (1969)

0% (1986)

80% (1976)