Income varies greatly among professional athletes. According to the U.S. Bureau of Labor Statistics, the median annual salary of all athletes was $48,310 in 2004, but the top performers can earn several million dollars per year. There are no set salaries in individual sports. Athletes earn their income by participating in tournaments and meets. Professional athletes receive many fringe benefits, and the best-known athletes usually become celebrities who earn even more money through product endorsements, television commercials, and personal appearances.