In europe, the game time is 4 x 10 minutes. And the clock doesn't stop after each basket (Otherwise in NBA, if I'm right?), but in the last 3 minutes from 4th quater, the clock stops after every basket too.
So basicly I would say that scoring in european games are somewhere between 60 to 70 points (per team). 50 or 80 points isn't that amazing scores either.