[frumper]

That is a self reported survey of households that doesn't lend itself to capturing all of the people. One, participants need to respond, which a busy and tired person isn't likely to do. Two, it doesn't define job, so if you don't think of your side hustle/gig work as a job, then you won't say it is. In the survey, if you did answer, and you do have 2 jobs, but you didn't work both in the exact week that you were surveyed, then you also aren't counted. IRS data, ADP private payroll estimates are much higher, but have their own issues.