Notes: Some plans failed to report profit status and are excluded from the analysis. HMO enrollment includes enrollees in both traditional HMOs and point-of-service (POS) plans through: group/commercial plans, Medicare, Medicaid, the Federal Employee Health Benefits Program, direct pay plans, and unidentified HMO products. Using data as of July 1 of each year.

Source: Kaiser Family Foundation, Trends and Indicators in the Changing Health Care Marketplace, 2002, May 2002, Exhibit 5.10, p. 57, at www.kff.org/insurance/3161-index.cfm, updated with July 1, 2003 data from InterStudy Publications, The InterStudy Competitive Edge Spring 2004, Part II: HMO Industry Report, Table 14, p. 40, and July 1, 2004 data from HealthLeaders-InterStudy, The Competitive Edge, Spring 2005, Part II: Managed Care Industry Report, June 2005, Table 7, p.30.