I may be mistaken on this, but this is what I remember from my college days.
Unemployment or Unemployed means those out of work and collecting Unemployment Compensation benefits.
If you have exhausted your benefits you are no longer Unemployed, you may still be out of work but you are not Unemployed.
If you have gone back to work you are no longer Unemployed.
If you have never worked you are not Unemployed.
If you have a work history, do not collect Unemployment benefits, but do collect some other form of Entitlement moneys, you are not Unemployed.
So, Basically the "Unemployment" numbers used by our Government are only those that want to work, have worked and are collecting temporary Unemployment Compensation Benefits..