[Air-l] internet usage stats

Hi everyone--I am seeking internet usage statistics for the U.S. from 1988 to 1995. The later years are easier to find but I can find nothing on the earlier years. Any ideas where I can find these? Are these even available? I've done some initial searches, but no luck. Any help would be much appreciated! Sabryna Visiting assistant professor Acting director of undergraduate Studies Communication BSB1148B 312-996-3104