Statistical CompilationsThe Office of Research, Evaluation, and Statistics produces numerous statistical reports that give a broad overview of the scope of the Old-Age, Survivors, and Disability Insurance and Supplemental Security Income programs. The data describe the characteristics of beneficiaries—for example, age, sex, income, and type of disability—and the type of benefits they receive (retired-worker, survivors, disabled-worker benefits, and so on). The data are also presented by state and, in some reports, by county or congressional district.