I thought it might be interesting to speculate what the approximate total frame productions runs were for each model year (not the total made per calendar year). This is based off what's been confirmed, and looking at the SNs, estimating the total since for the most part, the SNs are sequential.
The first number at the confirmed, identified frames, the second number an estimate on the total produced for that model year.
1991 - 10, c150
1992 - 3, c50
1993 - 49, c1,130
1994 - 29, c680
1995 - 1, c150
1996 - 12, c300
1997 - 8, c150
1998 - 12, c100
Total - 124, c2,710
The totals for Tom's production years are almost certainly too high as he was making frames for others if my memory serves me right. So perhaps we reduce by half, or maybe more. What's clear is 1993 was the peak year for production.