70% (1980)

50% (1988)

57% (1988)

52% (1978)

57% (1985)

65% (1967)

55% (1982)

50% (1954)

0% (1974)

57% (1962)

63% (1961)

61% (1968)

50% (1949)

0% (1986)

0% (1965)

64% (1993)

0% (1979)

60% (1972)

60% (1957)

0% (1984)