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BRASILIA, Feb 1 (Reuters) - Brazilian airline Gol Linhas Aereas said on Monday domestic demand fell 8 percent in the fourth quarter versus the same period a year ago.
Gol's net passenger revenue per available seat-kilometer -- a gauge of airline profitability known as PRASK -- rose by 2.3 percent in the fourth quarter from a year ago, Gol said.
Passenger yield, a gauge of pricing, rose 6.8 percent during the same period, it added.
Gol, which has been battling fierce competition, flagging demand and the cost-inflating effects of the Brazilian currency's to near all-time lows, has not reported a quarterly profit since the end of 2011. (Reporting by Alonso Soto; Editing by Alexander Smith)