Abu Dhabi's economy grew 6.8 per cent in inflation-adjusted terms in 2011, the fastest rate since 2004 and more than double the pace of the previous year, thanks to stronger activity in both oil and non-oil sectors, government data showed on Sunday.

"Growth in GDP at constant prices during 2011 surpassed all the forecasts and estimates made by local and international parties," the Statistics Centre Abu Dhabi said.

The real gross domestic product of Abu Dhabi, one of seven UAE, rose 3.0 per cent in 2010.

Abu Dhabi, which accounts for most of the UAE's crude oil output and about 65 per cent of the GDP of the second largest Arab economy, released detailed inflation-adjusted GDP data for the first time on Sunday. In the past, the statistics centre only published nominal GDP data.

The hydrocarbon sector, which accounts for over half of Abu Dhabi's real GDP, soared 9.4 per cent in 2011, the strongest expansion since 2004 and well up from 2.0 per cent in 2010.

Growth in non-oil activities was much more moderate at 4.1 per cent last year, only slightly above the 3.9 per cent clip in 2010 and roughly half of the average rate over the past decade, the data also showed.

Analysts believe the UAE, the world's number three oil exporter, benefited last year when it boosted oil output to help cover a production shorfall in civil war-torn Libya, a factor which will not be repeated in 2012. Global economic weakness is also expected to take its toll this year.

As a result, Abu Dhabi's economic growth is likely to slow to 3.9 per cent this year, but should pick up in the next few years, helped by diversification away from oil, its Department of Economic Development said in September.

Analysts polled by Reuters in September forecast economic growth in the whole UAE would slow to 3.2 per cent in 2012 from 4.2 per cent last year. – Reuters