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The usage and pricing of gasoline (or petrol) results from factors such as crude oil prices, processing and distribution costs, local demand, the strength of local currencies, local taxation, and the availability of local sources of gasoline (supply). Since fuels are traded worldwide the trade prices are similar, the price paid by consumers largely reflects national pricing policy: some regions, such as Europe and Japan, impose high taxes on gasoline (petrol); others, such as Saudi Arabia and Venezuela, subsidize the cost. Western countries have among the highest usage rates per person. The largest consumer is the United States, which used an average of 368 million US gallons (1.46 gigalitres) each day in 2011. U.S. petroleum consumption reached an estimated 18.87 million barrels per day in 2011, and is expected to increase to 18.96 million barrels per day in 2012. U.S. gasoline demand decreased to an average of 8.75 million barrels per day in 2011 (approximately 368 million gallons... (via Freebase)