WASHINGTON, D.C. - The U.S. average retail price for regular gasoline dropped by 9.5 cents to 220.1 cents per gallon, falling for the seventh week in a row. This price, however, was still 25.3 cents higher than this time last year, the Energy Department's Energy Information Administration (EIA) said. Retail prices have fallen by almost 73 cents per gallon in the past seven weeks. Prices were down throughout the country, with the West Coast seeing the largest regional decrease of 11.4 cents to 243.3 cents per gallon, the highest regional price in the country. The Midwest again had the lowest regional price in the country, falling 9.1 cents to 208.7 cents per gallon. East Coast prices fell by 8.9 cents to 220.6 cents per gallon. Retail diesel fuel prices fell 8.9 cents to reach 251.3 cents per gallon, the lowest price since Aug. 8, 2005. The U.S. average retail diesel price has fallen 64.4 cents per gallon during the past four weeks, the EIA said. Prices were down throughout the country, with the Rocky Mountains seeing the largest regional decrease of 11.2 cents to 265.4 cents per gallon, which remained highest regional average price in the country. Midwest prices were down 9.8 cents to 247.7 cents per gallon, the lowest regional price in the nation. West Coast prices averaged 265.2 cents per gallon after falling 8.6 cents, according to the EIA.