80% (1967)

0% (1970)

43% (1979)

100% (1971)

42% (1991)

74% (1981)

60% (1969)

48% (1963)

20% (1984)

42% (1974)

50% (1975)

0% (1967)

48% (1986)

0% (1977)

71% (1989)

80% (1980)

0% (1975)

50% (1980)

62% (1979)

67% (1972)