I love statistics. From beertown.org:
Forty percent of beer sales happen during 7 key weeks leading up to Super Bowl, Memorial Day (Indy 500), Independence Day, Labor Day, Thanksgiving, Christmas, and New Year's. 40 percent of beers sales is roughly 81 million barrels. Divided by 7 key weeks equals 11.6 million barrels per key week.
Roughly 5.7 percent of annual U.S. beer sales happens during each key week. With 330.67 12-oz beer equivalents per barrel, each key week would include sales of the equivalent of 3,835,772,000 12-oz beer servings or roughly 19 beers per U.S. adult during the sales week leading to Memorial Day.