[squidtone]

Yes.
I have data mined '67 GTO "trim" combos from the internet for some years now. It's probably 95 percent from auctions.
I only record vehicles that have published VINs and then record their "trim" combo. If a trim tag or PHS card is shown, I note this and for calculating stats, I only use these confirmed data points. Obviously this avoids including bogus or mistaken data.
I've collected I think about 1% of 67 GTO production. I'm no statistician so I'm not sure how accurate it is to predict overall color combo stats based on having a 1% sample rate of GTO's. And, by the way, I've not included any LeMans, Tempests, or wagons.

Sometimes I wish I'd tracked other years, but nah, since 67's are simply the best GTO's, I'm content.