Definitions
Salaried workers
It is understood thatsalaried workers, the group made up of people whose earnings are declared under code A (general employees) and code L27 (maternity and paternity benefits).
The annual reference for the definition of the salaried population and the existence of situations of multiple employment, part-time work and employment relationships of less than one year makes it possible for a salaried worker to obtain, throughout the year, salary payments from two or more companies or entities.
CallingNeitherto the set of entities that have paid salary payments to employee i and Sij the full annual salary (without deducting withholdings) paid by entity j to employee i, thetotal annual salary of said employee Ifis:

It will also be usedNeitherlike thenumber of salary perceptionsdifferent ones that the salaried employee i has received. BeingNhetotal number of paying entities.
It is consideredTOlike thetotal number of salaried workersbeing the sum of the employees of the different entities j.

whereAjis the total number of employees of entity j defined as

and fij, is defined as the weighting of each remuneration paid and thus represents the importance that the annual remunerations paid by entity j to employee i have on the total of the annual remunerations received by employee i, andNJthe total number of salaries paid by entity j (where Aj<=Nj). Therefore, employees with income from several entities are counted as employees of each entity in proportion to the salary paid by that entity with respect to the total received by the employee.
Thus, the operating variables total annual salaries, and annual salaries paid by a specific entity, are defined as follows:
- Annual salariesSj paid by entity jThey are obtained by adding up the salary payments made to the groupNJof persons who are part of the list of recipients of salaries paid by said entity. If Sij is the annual salary received by person i from entity j, the gross annual salaries paid by this entity (without deducting withholdings) are:

- Total annual salaries S, are defined as the sum of the annual salaries received by each of the A employees, or as the sum of the total annual salaries paid by the N entities:

The definitionaverage annual salaryfor any subset of salaried workers formed by crossing the classification variables as the sum of annual salaries divided by the number of salaried workers in that subset.
Unemployed
In this group, however, the phenomenon of plurality does not occur, since unemployment benefits are unique and always paid by the same withholding agent.
Pensioners
Also, in thePensionersThe phenomenon of multiple perceptions occurs, meaning that a pensioner can receive one or more pensions of different types.
Similarly to how it is established with salary, theannual pensionof a pensioner as the sum of all pensions received.
Similarly, for any subset of pensioners formed by crossing the classification variables,average annual pensionIt is defined as the sum of the annual pensions of said group divided by the number of pensioners in the subset.