The archive represents the most important source of information on pensions and on beneficiaries. From this archive may be selected the following type of beneficiaries: invalid due to work reasons, civil invalids and categories assimilated, war invalids, and those who have suffered a reduction of working capacity (of at least 66%) and have paid a suitable contribution period. It is possible to conduct a territorial and demographic analysis on the distribution of income and as well as on the number of benefits received by people with disabilities.