The data was released just a few minutes ago at MLG's website with the post containing other impressive numbers as well. 5.4 billion hours of video consumed. 20,000 on-spot spectators. 2.2 million unique online viewers for Championship Sunday only and $200,000 in prize money spread across the five disciplines: StarCraft 2, League of Legends, Mortal Kombat, Soul Clalibur V and The King of Fighters XIII.
MLG also posted a "By the numbers" infographic, also including a handful of fun facts about the figures mentioned.
Source: Major League Gaming
