Wow, thanks for posting those screenshots, it really shows the holes in my game, and the importance of population (I think).
To compare, at turn 64, you're at pop 13 and 16 BPT, at turn 100, you're at pop 26 and 57 BPT, and at turn 145 you're at pop 42 and 279 BPT. In my game, I'm at pop 9 and...