0% (1979)

0% (1976)

40% (1980)

60% (1976)

0% (1982)

0% (1980)

0% (1963)

0% (1986)

40% (1990)

0% (1979)

60% (1979)

45% (1984)

50% (1986)

0% (1970)

0% (1977)

10% (1980)

10% (1982)

0% (1991)

0% (1966)

30% (1983)