65% (1976)

57% (1982)

0% (1978)

45% (1979)

0% (1969)

57% (1958)

0% (1967)

65% (1982)

0% (1985)

50% (1979)

0% (1979)

61% (1956)

30% (1964)

50% (1981)

0% (1982)

50% (1987)

0% (1980)

60% (1964)

20% (1961)

57% (1967)