NFL attendance relative to other North American sports leagues
NFL regular-season attendance hit six-year high in 2022 - NBC Sports
JACKRABBITS CLOSE OUT REGULAR SEASON - South Dakota State
USFL Attendance: Even with crappy weather the USFL still did a
Which college football teams led the way in attendance this season?
Sabres Average Attendance Compared to Last 10 Years is Shocking
NFL Betting Strategy: Home-Field Advantage (2022)
NFL Teams With Most Fans: Highest Attendance This Season
Going gangbusters: NFL attendance has bounced back in a major way
NFL per-game attendance makes big jump
Super Bowl XLIV - Wikipedia
Ranking Attendance for the 2017 NFL Season
XFL Attendance in Seattle was lousy
XFL Attendance Week 3 had an increase in fans over Week 2