Statistics of chess players and events

How many FIDE rated players are there in the different countries? How many open and round robin tournaments are held in each? What is the total number of FIDE rated games played per year in the world, and which country leads the statistics (guess: Russia, India, Germany, France or Spain)? And who are the greatest exporters and importers of players? <a href="[Post:view_link]">Numbers and graphs by Martin Huba.</a>

I've developed ChessMonitor: a website to show statistics for players based on Lichess and Chess.com games. Here is an example for Hikaru. You can also get your own page! (link in comments)

norms There and Back Again

Checkmate: top chess players live longer

Chess boom: Will the U.S. produce another Bobby Fischer? - Big Think

Quantifying the complexity and similarity of chess openings using online chess community data

Chess Records - CHESS POWER

Study: Chess Grandmasters Live Longer

Big money and big temptation in the world of online chess

Harvard chess tournament drew amateurs and masters alike — Harvard Gazette

The Effect of Chess on Standardized Test Score Gains - David I. Poston, Kathryn K. Vandenkieboom, 2019