The statistic was provided by Orbus Gameworks, a consulting company that helps game developers keep track of what their players are doing in-game.
Here's a more complete breakdown of the average times spent playing BFBC2:
* Rank 1-10 players spent 3-24 hours in game
* Rank 11-20 players spent 25-44 hours in game
* Rank 21-30 players spent 48-100 hours in game
* Rank 31-40 players spent 111-221 hours in game
* Rank 41-50 players spent 228-295 hours in game
To appreciate the scale of that, a Rank 50 player has put in the same amount of time as someone working full time on a 40 hour week job, for seven weeks.
It has been nearly seven weeks since the game's release on March 2nd.