P O P W O R K I N G r = F ( A g e D s t c , r , w o r k a g e e n t r y r , w o r k a g e r e t i r e r ) {\displaystyle POPWORKING_{r}=F(AgeDst_{c,r},\mathbf {workageentry} _{r},\mathbf {workageretire} _{r})}
