0% (1974)

60% (1981)

0% (1981)

30% (1990)

85% (1989)

50% (1963)

85% (1974)

70% (1976)

50% (1979)

40% (1990)

0% (1971)

70% (1972)

0% (1966)

0% (1980)

0% (1973)

40% (1979)

0% (1976)

0% (1980)

30% (1991)

60% (1974)