U.S. consumer prices increased less than expected in January, data showed, keeping the Federal Reserve on track to cut interest rates this year. The Consumer Price Index rose 0.2% last month after an unrevised 0.3% gain in December. It rose 2.4% on a yearly basis, less than the estimate of a 2.5% increase, according to economists polled by Reuters. The report was slightly delayed by last week's three-day shutdown of the federal government. MARKET REACTION: STOCKS: U.S. stock futures were flat to slightly lower after the inflation data. BONDS: U.S. Treasury yields slipped after the inflation report. The yield on benchmark U.S. 10-year notes was last down 2.9 bps at 4.075% FOREX: The dollar index was flat to slightlyn higher at 96.932.