>>27
>>1
NBAの人気>>>>>>>>>>>>>>MLBの人気
NFLの規模>>>>>>>>>>>>>>MLBの規模
欧州サッカーの規模>>>>>>>>>>>>>MLBの規模

アメフトの市場規模>>>>>>>>>>>>>>>>>>>>>>>>野球の市場規模
https://profootballtalk.nbcsports.com/2017/03/06/nfl-will-reach-14-billion-in-2017-revenue/
https://www.forbes.com/sites/mikeozanian/2016/01/30/super-bowl-50-will-generate-620-million-for-nfl/#563285156902
https://www.usatoday.com/story/sports/mlb/2017/11/22/mlb-revenues-exceed-10-billion/890041001/

サッカーの市場規模>>>>>>>>>>>>>>>>>>>>>>>>野球の市場規模
https://www.atkearney.com/communications-media-technology/article?/a/winning-in-the-business-of-sports

バスケの人気>>>>>>>>>>>>>>>>>>>>>>>>>>>野球の人気
https://bleacherreport.com/articles/1513368-reasons-the-nba-is-now-more-popular-than-mlb#:~:text=For%20past%20three%20years%20the,watching%20the%20NBA%20than%20MLB.