@tnar yes, thanks to you too. I know IAFD and already use it, but unfortunately, it's very incomplete. For releases from those years, the films are listed, not individual videos or photo sessions.
They should hire more people with OCD about nitpicking like me, lol!

You can do something similar with iafd.com as well. They sometimes have actual release dates, but I randomly looked through some old Bel Ami listings and found mostly just years there as well.

[trigger warning for those who care: iafd has straight porn as well]

I was wondering: is there a list

You might try https://gayeroticvideoindex.com/company/304 , and then sort by release date. It only gives a year, and no "serial numbers," but maybe it's a start. I don't know how complete the list is, or whether it includes the "hidden" videos.