United States. Bureau of Labor Statistics. "Number of Jobs, Labor Market Experience, and Earnings Growth among Americans at 50: Results from a Longitudinal Survey, USDL-17-1158," Number of Jobs, Labor Market Experience, Marital Status, and Health for Those Born 1957–1964 (August 24, 2017). https://fraser.stlouisfed.org/title/9650/item/707289, accessed on January 19, 2026.