As 33 million of us hit the road for Labor Day weekend (AAA estimate), consider that although gasoline prices have tripled since 1993, the federal gas tax hasn't budged one cent. It's remained a flat 18.4 cents per gallon for nearly 20 years. The revenue goes to maintain highways and bridges in sore need of repair, but inflation has whittled its value down by 35 percent.
State taxes also figure in pump prices: to see what the average American driver pays each year, see today's infographic. Then join the discussion thread below. Is road repair everyone's problem, or just motorists?
Face the Facts USA is a project of The George Washington University's School of Media and Public Affairs. Would you like the "Fact of the Day" beamed straight to your email inbox? Sign up here. For more fun stuff, follow them on Twitter @FaceFactsUSA, or like them on Facebook.
CORRECTS: Gas taxes in Arizona (37.4 cents) and New Mexico (37.3 cents) -- 8.31.12
Earlier on HuffPost: