Many of us aren't old enough to remember Gasoline at 20 cents a gallon. I can remember gas during the 1960's at 29.9 cents a gallon. The last time that gasoline averaged 20 cents a gallon was in 1942. That was during WWII ! But if you know us here at InflationData.com you probably know that we usually talk in inflation adjusted prices. So adjusting for inflation, the price of gas in 1942 would have been $2.78 if you are paying in January 2012 dollars. But that is still a long way away from the average price of Gas in 2011 of $3.48. We track the inflation adjusted price of gasoline based on the annual average price using the Consumer Price Index (CPI) generated by the U.S. Bureau of Labor … [Read more...]