RELX PLC LS -,144397 revenue for the last year amounted to 11.40 B EUR, the most of which — 3.92 B EUR — came from its highest performing source at the moment, Risk, the year earlier bringing 3.61 B EUR. The greatest contribution to the revenue figure was made by North America — last year it brought RELX PLC LS -,144397 6.60 B EUR, and the year before that — 6.14 B EUR.