you for being vigilant. we know dan from yahoo finance and commerce, money and economics. you sort of brought a nice perspective to this, which is compared to a few years ago, for someone beating the drum on efficiency all the time, we ve moved in that direction. even compared to a year ago, i just saw a number of december. we drove 1.5% more miles than we did the year before, using about 3% less gasoline. that s a 4% improvement. it may not sound like much. you do that two or three years in a row and you re talking serious business. what have the efficiency trends been and is this a reversal for this country? if anything, i think the efficiency trends were negative for much of the 90s and 2000 when gas was cheap, we were buying hummeasurs and suvs and investing in things like oil.