NOS SGPS revenue for the last year amounted to 29.95 B MXN, the most of which — 28.73 B MXN — came from its highest performing source at the moment, Telco, the year earlier bringing 30.71 B MXN. The greatest contribution to the revenue figure was made by Portugal — last year it brought NOS SGPS 29.95 B MXN, and the year before that — 31.75 B MXN.