Through 12 games, the Nats are 2nd in the majors in runs per game, and first in the NL. Nats are tied with the Yankees at 5/game, Texas has the highest average with 5.17/game.
Dbacks (63), Reds (62) and Mets (61) have all scored more runs, but have played 13 games. The Dodgers have also scored 60 runs in 13 games, same as the Nats, but we've done it in 12.