0% (1963)

64% (1974)

40% (1981)

0% (1965)

0% (1977)

0% (1964)

71% (1973)

65% (1977)

0% (1970)

70% (1961)

67% (1973)

65% (1972)

70% (1973)

0% (1965)

0% (1973)

0% (1953)

65% (1975)

10% (1977)

51% (1973)

60% (1979)