Thailand's annual headline inflation rate quickened in October due to higher energy and food prices, the commerce ministry said on Wednesday, but still remained below the central bank's target range of 1% to 3%. The headline consumer price index (CPI) rose 0.83% in October from a year earlier, the commerce ministry said. That was below a forecast rise of 0.94% in a Reuters poll, and followed September's annual increase of 0.61%. The core CPI, which excludes volatile food and energy prices, increased 0.77% in October from a year earlier, in line with a forecast rise of 0.79% in the poll. For the January-October period, average annual headline inflation was 0.26%, with core inflation at 0.52%.