Article from 1973 reveals production numbers and ratios of baseball vs. other sports

RookieWax

Found this posted in a recent article. It indicates that football card sales/production in 1973 was less than 50% of baseball, and basketball and hockey then would each be roughly 10% of the sales/production of baseball.

...and that total production of all cards was over 500,000,000.

PaulMaul

That year, wacky packs almost certainly outsold all sports but baseball.