How many mlb teams scored 13 runs in a game in 2012?

Weird that you are wondering this, and even stranger that I know the answer. Although you'd probably be amazed at the sports statistics that I am tracking. Do you want to know the number of first pitch swings in Yankees/sox game on April 26th? Well it's 19.

Anyway, to answer your question...there have been 3 games so far this season that a team has scored EXACTLY 13 runs in a game...

Toronto on 4/10, Philadelphia on 4/26, and Philadelphia on 4/27