For the eighth season in a row the American League has topped the National League during interleague play, but it was a lot closer than most of those years.
With a record of 131-121 the AL had a winning percentage of .520, which is their lowest interleague mark since 2004:
YEAR ALW% 2011 .520 2010 .532 2009 .548 2008 .591 2007 .544 2006 .611 2005 .540 2004 .504
Over the course of a 162-game season a .520 winning percentage is the equivalent to going 84-78. Overall the all-time interleague standings have the AL up 1,939 to 1,773, which is a .522 winning percentage and equal to an 85-77 record.
How long has it been since the NL won interleague play? That season the list of players making their MLB debuts included Miguel Cabrera, Mark Teixeira, Hideki Matsui, Chase Utley, Jason Bay, Justin Morneau, Jose Reyes, Brandon Webb, Dan Haren, and Dontrelle Willis.