2020 Big 10: 54.3mil per team
2021 SEC: 54.6mil per team
I'd guess Big 10 will be ahead when they release their numbers.
For 2020:
Total Revenue
Big Ten: $768.9 million
SEC: $728.9 million
Pac-12: $533.8 million
ACC: $496.7 million
Big 12: $409.2 million
School Payouts
Big Ten: $54.3 million
SEC: $45.5 million
Big 12: $37 to $40.5 million
Pac-12: $33.6 million
ACC: $30.9 to $37 million
https://www.si.com/college/indiana/football/big-ten-daily-big-ten-leads-all-conferences-in-2020-revenue-indiana