The FRC team numbers are up to 5784 or so. Ever wonder how many of those teams are active?
The AndyMark first Choice page shows how many teams have submitted their priority lists for free parts. That’s a very good indicator, as none of us can pass up free stuff.
A quick import to a spreadsheet shows that 1607 teams have submitted lists. That’s a lot of active teams! It’s even more inactive teams, though.
Someone with more statistics mojo than I could figure out the half life of an FRC team, and the decay curve shape.