A population can be a group of several populations. For example, the ‘Apprentices’ population can contain the ‘Factory apprentices’ sub-population and the ‘Office apprentices’ sub-population.
This table must contain the list of sub-populations that make up the current population.
The legislation of the sub-populations must be the same as the legislation of the population. If the population is not bound by legislation (that is, no legislation is entered in the header), you can select any sub-population.