Biannual SHOULD mean twice a year. Every two years is biennial. But my dictionaries say biannual MIGHT also mean every two years. Probably everybody is so confused about the two similar words that they don't know what biannual means.
According to U.S.A. Today âs âWeekend Gas Gauge,â the current average price of regular gasoline is $4.026 per gallon. A year ago the price was $2.945. What I hadnât realized was that the gap between regular gas and premium gas has also increased.Right now, premium gas is 38.5 cents per gallon more expensive than regular gas.A year ago, that gap was 29.5 cents. year ago the price was $2.945. What I hadnât realized was that the gap between regular gas and premium gas has also increased. Right now, premium gas is 38.5 cents per gallon more expensive than regular gas. A year ago, that gap was 29.5 cents.
Based on EIA's weekly survey of retail fuel prices at service stations around the country, the cheapest average price for regular gasoline during 2011 was $3.07 per gallon on January 3, and the highest price was $3.97 per gallon on May 9.he average price U.S. drivers paid for gasoline and diesel during 2011 never fell below $3 per gallon, marking the first time the national pump price for both transportation fuels topped $3 per gallon throughout a calendar year.