That I don't know, but I do know that unskilled labor has no power and the primary way for an unskilled laborer to make more than min wage is to do a job that most people are not willing to do, for whatever reason. A cushy cash register job? Min wage for you and most will not hire full time because they don't want to pay for benefits, like health insurance. So an unskilled laborer will need two part time jobs, both without benefits (healthcare) just to get by. That also means they will never qualify for overtime pay. Anything over 40hrs a week has to be paid at 1.5x, but if you work two jobs you can work 70hrs a week and get no benefits and no overtime.