The figure given below shows the market for computers in the U.S. The domestic price line inclusive of the tariff lies above the international price line. Dd and Sd are the domestic demand and supply curves of computers respectively. Dd Sd World price Domestic price with tariff Quantity (thousands of units) 100 190 120 200 0 Price $2,400 $2,000 Calculate the tariff revenue of the U.S. government.