45% (1987)

43% (1990)

0% (1979)

74% (1971)

41% (1990)

59% (1986)

44% (1967)

75% (1980)

45% (1990)

40% (1944)

74% (1968)

50% (1970)

80% (1972)

68% (1979)

75% (1972)

0% (1977)

62% (1968)

53% (1972)

80% (1983)

59% (1975)