WEST PHARMACEUTICAL SERVICES INC revenue for the last year amounted to 60.32 B MXN, the most of which — 48.67 B MXN — came from its highest performing source at the moment, Proprietary Products, the year earlier bringing 40.72 B MXN. The greatest contribution to the revenue figure was made by United States — last year it brought WEST PHARMACEUTICAL SERVICES INC 25.66 B MXN, and the year before that — 21.04 B MXN.