you got the years right for 4th and 5th gens.

There were only 2 models in the 5th gen. Base and SH. They both had the same engine. H22a4 VTEC, the diffrence was that the SH had better suspension and handling.

The 4th gen came in many flavors. S, Si and VTEC. I know that 94-96 had all 3 flavors... but 92 and 93... I think 92 didn't have VTEC.

3rd gen... I don't know much of anything about them.