Romania's GDP totalled 637.6 billion lei ($174.8 billion/142.6 billion euro) in current prices last year, INS said citing semi-final data.
The latest GDP growth figure for 2013 is 0.1 percentage points lower than the previous one, released by INS in April.
Romania's agricultural sector expanded 29.2% last year, the industry rose 3.8% and the construction sector grew by 5.3%.
Final household consumption rose 1.1%, while gross fixed capital formation fell 7.9%. Exports grew 16.2%, outpacing imports, which increased by 4.2%.
Romania's GDP expanded by 2.8% in the first nine months of 2014, mainly due to a strong performance of the industrial sector. The government targets an economic growth of 2.5% for next year.
(1 euro = 4.471 Romanian lei)