IV. PROMISES AND REALITY OF PRIVATE PENSION SYSTEMS The main objective of this monograph is to evaluate the performance of the nine Latin American private pension systems within the last four decades, since the Chilean system came into force in 1981 and, especially in 1999-2019(period of time in which we have comparable statistics in all countries), based on the five most significant aspects: 1) Coverage of the economically active popula ­tion(EAP) or labor force and the older-adult population(65 years and over); 2) Social solidarity and gender equity; 3) Sufficiency of benefits; 4) Efficient administration and reasonable costs(competition), and 5) Financial and actu­arial sustainability. 10 These aspects correspond to the fundamental principles 10 Reformers also argued that, due to the ownership of the individual account and the private administration, the state would not be able to intervene or interfere in private systems. The shutting down of the private system in Argentina and Bolivia, the financing of the transition with AFP funds in El Salvador, and other similar actions put an end to said claim. 36