I know, Willy, I was just having fun with his reply. If he was that concerned with pop growth, though, I imagine he'd play Breeder.
Also, for what it's worth, it's definitely 75M. And like everything else in the game, modifications to the base value are truncated, which is why running at 100% approval with a 50% growth bonus gives you 224M growth rather than 225M growth (assuming you've hit the ceiling on base growth).