American Airlines says the following in their marketing materials:
In 2004, AAdvantage members claimed over four million awards, as shown below.
AAdvantage MileSAAver and AAnytime awards (valid on American, American Eagle and American Connection carriers only) 2,270,593
Upgrades 673,977
Product Redemptions (AmericanAirlines Vacations, Magazines, HospitAAlity awards, etc.) 224,800
Special Mileage awards, Other airlines awards, other misc. 906,454
Total 4,075,824
The total number of miles redeemed was approximately 129 billion miles.