82% (1994)

0% (1984)

100% (1973)

0% (1975)

0% (1983)

50% (1981)

0% (1979)

85% (1983)

90% (1985)

67% (1986)

0% (1980)

0% (1977)

0% (1989)

50% (1989)

0% (1969)

60% (1980)

0% (1976)

70% (1971)

40% (1976)

0% (1982)