WASHINGTON (AP) - The U.S. economy grew at a sizzling 5 percent annual rate in the July-September period, the fastest in more than a decade, boosted by strength in consumer spending and business investment.

WASHINGTON (AP) The U.S. economy grew at a sizzling 5 percent annual rate in the July-September period, the fastest in more than a decade, boosted by strength in consumer spending and business investment.

The Commerce Department is sharply revising up its estimate of third-quarter growth from a previous figure of 3.9 percent. Much of the strength came from consumer spending on health care and business spending on structures and computer software.

It was the fastest quarterly growth since the summer of 2003. It followed a 4.6 percent annual growth rate in the April-June quarter.

Most economists think growth is slowing to an annual rate of around 2.5 percent in the current October-December quarter. They foresee growth around 3 percent in 2015.