30% (1980)

0% (1966)

0% (1974)

58% (1977)

55% (1987)

0% (1965)

65% (1982)

70% (1980)

45% (1969)

0% (1966)

63% (1966)

0% (1970)

0% (1990)

85% (1976)

43% (1986)

0% (1963)

50% (1968)

0% (1972)

0% (1970)

0% (1974)