The figures were released as the country was poised a referendum on plans to repay the UK and the Netherlands debts owed from the collapse of Icesave bank.
Plans to fork out 3.8bn euros (£3.4bn) has proved unpopular with voters.
The performance of the economy was the best since the country's financial system nearly collapsed in 2008.
Antje Praefcke, an analyst at Commerzbank said: "That's a nice number, but it's not springtime
yet. Maybe there's less snowfall, but it's not spring yet."