In case you wanted to see all of the World Series data, check this Google Spreadsheet.
You will see individual game rankings on the first tab, and cumulative series totals on the second tab.
I also have put the 2004 to 2013 complete game index (not including playoffs), up if you want to take a look.
It’s important to understand where EGI comes from if we want to predict it for the future. With about 20% of the season past, it’s possible to draw some early conclusions about the underlying factors of EGI. Looking at an individual game, it’s easy to see if that game is going to be scored well: lead changes, late come backs, blown saves – all of these things will drive the score up. But what gets a team into these situations?
Certainly being in close games makes a big difference. Blowing out too many games, or being blown out won’t keep people interested late in the game. Take a look at the Angels, the least exciting team, and you’ll see a lot of blow out games (in both directions). In fact, only 15 of their 34 games have been within 3 runs. Compare this to the Nationals, who have 25 of 33 games within 3 runs, and 16 of 33 within 1 run.