65% (1982)

48% (1984)

48% (1967)

48% (1977)

34% (1990)

50% (1967)

10% (1967)

0% (1979)

55% (1982)

53% (1961)

43% (1987)

38% (1983)

0% (1976)

63% (1981)

55% (1986)

33% (1981)

80% (1981)

0% (1988)

80% (1955)

60% (1961)