> Some people think that to get these figures on unemployment, the government uses the number of people collecting unemployment insurance (UI) benefits under state or federal government programs.

> But some people are still jobless when their benefits run out, and many more are not eligible at all or delay or never apply for benefits. So, quite clearly, UI information cannot be used as a source for complete information on the number of unemployed.

-- https://www.bls.gov/cps/cps_htgm.htm#where

The continued explanation for how they account for it is in the link.

If you look close enough at the details, its fairly obvious that the details are highly lacking, and appear to only give the illusion, without the accuracy or objective measure.