JumpShip Class Numbers for 3025

The best candidate I've found is a simple geometric sequence where each class has 27/50ths as many ships as the previous class.

Qty	- Class
920	- Invader (32% are commercial)
497	- Merchant
268	- Scout
145	- Star Lord
78	- Monolith
42	- ??
23	- ??
12	- ?Explorer? (HM:FWL, p127, 152)
7	- luxury liners (HD:FS, p173)
4	- ??
2	- ??
1	- ??
etc	- various

The top five ships add up to 1908. That's how many stars the old 3025 map shows in the Successor States. 

MW1e claims there are 450 "actively settled" worlds, and the House Atlases describe 156 as highly populated, leaving 294 others. There are 294 Invaders in commercial use.

145 worlds have more than a billion people. That's one world for every Star Lord.

The Successor States have 268 Scout vessels for 270 regiments' worth of House 'Mechs. Could be why there's a Suns regiment and a Capellan regiment which replace all their 'Mechs with tanks.

I've been using this sequence for a while as a fast approximation (it's easier than looking up my old MW1e estimates). Wouldn't have considered it seriously if not for conversations with Frabby and a Simulated Knave.