0% (1985)

69% (1986)

80% (1979)

59% (1975)

78% (1975)

0% (1979)

57% (1973)

85% (1978)

79% (1977)

0% (1975)

0% (1974)

76% (1978)

60% (1976)

35% (1979)

60% (1978)

60% (1983)

0% (1973)

0% (1979)

0% (1978)

0% (1973)