The number of Americans affected by Seasonal Affective Disorder, according to an article in the National Institutes of Health MedlinePlus Magazine -- Falling back: Seasonal affective disorder.
The "the total reported personnel strength of the Ready Reserve" as of September 30, 2019, according to a Congressional Research Service report updated earlier this year -- Reserve Component Personnel Issues: Questions and Answers.
The number of "unique veteran patients" who were provided care by the Veterans Health Administration (VHA) in FY2020, according to VHA estimates as detailed in a Congressional Research Service report -- Health Care for Veterans: Answers to Frequently Asked Questions.
The number of children enrolled in Department of Defense Domestic Dependent Elementary and Secondary Schools (DDESS), according to a recently updated CRS In Focus Report -- DOD Domestic School System: Background and Issues.