0% (1979)

40% (1984)

49% (1973)

50% (1979)

37% (1972)

0% (1970)

0% (1969)

50% (1973)

0% (1968)

60% (1970)

50% (1973)

50% (1970)

0% (1975)

0% (1971)

0% (1967)

0% (1963)

10% (1963)

60% (1968)

85% (1980)

50% (1971)