11. 1975 The Dispossessed by Ursula LeGuin (1 added)

12. 1976 Forever War by Joe Haldeman (2 added)

13. 1977 Man Plus by Frederick Pohl (2 added)

14. 1978 Gateway by Frederick Pohl (1 added)

15. 1979 Dreamsnake by Vonda McIntyre (1 added)

16. 1980 Fountains of Paradise by Arthur C. Clarke (1 added)

17. 1981 Timescape by Gregory Benford (1 added)

18. 1982 Claw of the Conciliator by Gene Wolfe (3 added)

19. 1983 No Enemy but Time by Michael Bishop (1 added)

20. 1984 Startide Rising by David Brin (3 added)