40% (1979)

0% (1975)

60% (1975)

53% (1978)

43% (1980)

0% (1983)

58% (1988)

59% (1988)

50% (1983)

60% (1991)

0% (1962)

70% (1986)

0% (1966)

80% (1977)

0% (1990)

70% (1977)

40% (1965)

10% (1982)

0% (1979)

0% (1973)