That was Sterling's 10th goal of the season. In his first full season in the league at the age of 19. To put that into perspective, Ronaldo, Messi and Rooney in their first full seasons:
Ronaldo - 2004/05 - 9 goals
Messi - 2006/07 - 17 goals
Rooney - 2003/04 - 9 goals
Don't think there've been any other teenagers out there in the last decade with that kind of production.
Nitpicking a bit I suppose, but shouldn't Sterling's first full season be last season? He's so far played about the same number of games as back then, owing to being out of the team until December.