For example, even though ivory-producing countries have established a quota of twenty tons a year, trafficking on the black market far exceeds that figure, with most of the profit going into the pockets of middlemen.
像現在華盛頓公約規定產象牙國家，每年只准出口象牙廿噸，但在非洲私下進行的交易，數量遠超過規定數目。