The graph ("vs. Headline Rate")[0] follows the same trend lines as the BLS numbers just with a higher percentage. I don't see how the "poverty wage" methodology (which is arbitrary) is helpful here, it doesn't take into account caregivers or disabled people who may be keeping their wage low on purpose due to benefits cliffs.

Effectively they just take the official numbers and add a constant.

0: https://www.lisep.org/tru