The charts below rank the Am Law 200 by the average pro bono hours performed by their U.S.-based lawyers in 2019, as well as by the percentage of their U.S.-based lawyers who performed more than 20 hours of pro bono work in 2019. Calculations are based on lawyer counts as of Dec. 31, 2019.  We define pro bono work as legal services donated to ­organizations or individuals that could not otherwise afford them. We do not include work done by paralegals or summer associates, nor time spent on bar association work, nor on nonlegal work for charities or on boards of nonprofit organizations.