I also asked players how long they had been currently playing their MMO in months. Below is a stacked chart that shows proportion of each stage across months played. One thing to keep in mind when reading this graph is that all the players who have quit are not part of these stacks. Thus, these aren't numbers about all players, but rather, the players who have not quit the game by the 5th or 7th or 12th month.

Until the 3rd month, most players are still in the Starting and Ramping Up phases (68% combined). By the 4th month, the majority of players are past the beginning stages (57% in Mastery + Burn Out + Casual). By the 7th month, no one considers themselves to be a total noobie in the game and over one-third of players consider themselves to be playing casually. At the one-year mark, we see the largest proportion of players at the Mastery stage. And by the 19th month mark, the majority of players (54%) are in the Casual stage.