This document is about a report to Congress from the U.S. Department of Labor on self-insured, mixed-insured, and fully insured group health plans. It provides detailed statistics on the number of plans, participants, funding arrangements, benefits offered, and financial information for plans that filed Form 5500. The report highlights the limitations of the data and the complexities in interpreting it, as the data only covers plans required to file Form 5500, which excludes many small plans and governmental/church plans.