66% (1983)

10% (1984)

59% (1971)

74% (1986)

100% (1980)

0% (1979)

52% (1981)

10% (1978)

0% (1981)

59% (1970)

57% (1971)

0% (1980)

60% (1970)

55% (1980)

80% (1971)

50% (1984)

47% (1978)

50% (1978)

67% (1971)

58% (1971)