53% (1978)

82% (1962)

42% (1982)

51% (1973)

20% (1976)

38% (1991)

0% (1961)

35% (1979)

60% (1973)

48% (1987)

0% (1957)

50% (1974)

50% (1968)

64% (1972)

50% (1971)

0% (1958)

0% (1956)

63% (1956)

65% (1961)

51% (1974)