Everyone knows the 'Friends' crew spent a lot of time at Central Perk. Between Rachel's time working there, Joey's time working there, and the time the entire group spent hanging out while the rest of the city went to work, they were there a lot. But how much coffee did they actually buy and drink? A studious Friends fan named Kit Lovelace found out, and published the findings to Twitter:

A few things stand out from the results: 1) It's peculiar that Rachel, who in theory spent the most time at the coffee shop, was last in coffee drinking. 2) The totals are all relatively low considering how much of the show was filmed at Central Perk. 

Kit went on to track the how the characters' habits changed over time: 

Sure it's all "useless trivia" but I think we are all better off from knowing it. A tip of the cap to all of the people out spending their time doing research like this.