- 1977 to 19794
- 1980 to 19810
- 1982 to 198419
- 1985 to 198677
- 1987 to 1989136
- 1990 to 1991104
- 1992 to 1994152
- 1995 to 199666
- 1997 to 1999169
- 2000 to 200167
- 20028
The preservation of the Duke University Libraries Digital Collections and the Duke Digital Repository programs are supported in part by the Lowell and Eileen Aptman Digital Preservation Fund