The dollar strengthened after data showed the US economy grew at a slightly faster pace in the last three months of 2006 than thought previously. The Commerce Department estimated the US economy grew at a 2.5 pct annualised rate between October and December, faster than the 2.2 pct estimated earlier. Economists had expected no revision. "On the face of it the revision seems positive and the market's reacting accordingly, " said Mitul Kotecha, head of forex strategy at Caylon. "However if you look at the detail I think the reaction will be pretty short-lived. Residential investment was down 19.8 pct, equipment and software was down 3.4 pct while a lot of the gains came from inventories," he added. The dollar gained on major currencies, pushing the euro down to 1.3319 usd from 1.3345 shortly before the data was released.