pic: Histogram of # years active for teams that have dropped out

[plnyyanks]

Originally Posted by GeeTwo

There are many teams which no longer exist which do not show up in TBA at all. Maize Craze was reportedly played by 28 teams, but there are only 8 teams listed as having been founded in 1992, seven of which still compete.

I'm pretty sure TBA will only return teams that survived into the static team number age (teams that folded before that wouldn't have been available in the FIRST records for TBA to import, and any data that did exist wouldn't have made much sense). So the cutoff would be: all teams on TBA competed in at least the 1998 season.

I couldn't find any quick examples to dispute that, although I didn't to an exhaustive search.