Export prices rose 2.6 percent in 2017 following a 1.3-percent rise in 2016.
The metal is up 0.7 per cent so far this week and is set for its longest run of weekly gains since a streak that finished in the week ending April 14.
USA gold futures were up 0.5% at $1,329 U.S.an ounce.
The dollar index, which measures the greenback against six rival currencies, fell to its lowest since September 20, 2017, at 91.689.
($3.01 trillion) stimulus programme this year.
A stronger euro potentially boosts demand for gold by making dollar-priced bullion cheaper for European investors. "Prices have only risen despite the Fed raising interest rates and main driver has been the USA dollar, which we continue to see help gold run higher in the first quarter", said Brian Lan, managing director at dealer GoldSilver Central in Singapore. Based on this, we saw the gold prices move higher during the course of trading yesterday as the dollar was generally on the backfoot.
Weak inflation at the producer level could add to concerns that the factors restraining inflation could become more persistent and result in the US Federal Reserve being more cautious about raising interest rates this year. This goes against convention and fundamentals and it is indeed a surprise that the gold prices are here with the stock markets making all time highs around the world, the crypt industry doing decently well and the demand for gold having hit a plateau over the a year ago or so but then, this is the market and generally there is not much logic into what goes on in the markets in the short term.
Investors will be watching the US Consumer Price Index (CPI) data due later on Friday, which is expected to show inflation likely increased 0.2 percent in December after rising 0.4 percent in November.
Among other precious metals, spot silver rose 0.8% to $17.11 U.S.an ounce. Silver is on track for its first weekly loss in five weeks. Platinum was heading for its fifth straight weekly gain, rising 1.9% so far this week. It has risen 1.7 percent so far this week.