50% (1989)

0% (1982)

0% (1975)

0% (1979)

76% (1971)

27% (1979)

0% (1989)

77% (1979)

65% (1979)

45% (1982)

0% (1992)

59% (1983)

0% (1981)

63% (1981)

53% (1981)

0% (1963)

50% (1969)

60% (1966)

70% (1972)

70% (1971)