AMGEN INC revenue for the last year amounted to 33.36 T CLP, the most of which — 31.96 T CLP — came from its highest performing source at the moment, Human Therapeutics, the year earlier bringing 23.73 T CLP. The greatest contribution to the revenue figure was made by United States — last year it brought AMGEN INC 23.82 T CLP, and the year before that — 17.47 T CLP.