Retirement Account Balances by Age, United States, 2022 (computed from the Federal Reserve Survey of Consumer Finances)

Median, mean, 25th/75th/90th percentile and zero-share retirement account balances by age cohort, computed from the Federal Reserve's 2022 Survey of Consumer Finances Summary Extract under a pre-registered method, with correct multiple-implicate handling and a reconciliation against the Board's own published table. Version 1.1.0 corrects one field. Version 1.0.0 reported weighted_families at exactly one fifth of the true value, because the Summary Extract's WGT column is the survey weight divided by five. Every median, mean, percentile and share is scale-invariant and is unchanged; no conclusion moves. The corrected total is 131,306,389 families. See CHANGELOG.md for the full value-by-value diff and the three checks used to verify it.