Against the first quarter of 2014, the GDP growth was 4.3%, and 4.2% in seasonally adjusted data.
The economic evolution in the first quarter is sensibly better than expectations, as analysts predicted a GDP growth of 2.5%-3%.
During the first three months of 2015, the growth pace accelerated from a 2.7% annual growth in the fourth quarter of 2014.
The statistics office also updated the seasonally adjusted data series for 2014, by including the estimate for the first quarter of 2015.
Therefore, the GDP growth in the fourth quarter of last year is now estimated at 1% against the previous quarter, compared with 0.7% in the previous release. The figure for the third quarter was also revised to 2.2% from 2.1%, while the second-quarter GDP contraction is unchanged at minus 0.6%. The quarterly growth for the first three months of 2014 was revised down to 0.1% from 0.3% seen previously.
The statistics institute will provide breakdown data for the first-quarter economic growth on June 4.