Growth is projected at 2.8% this year, excluding the start of natural gas production at a large well off Israel's Mediterranean coast, which is expected to add about 1 percentage point to gross domestic product.
GDP growth was 3.2% in 2012. Partly to encourage economic growth, the Bank of Israel cut its benchmark lending rate to 1.25% in two quarter-point moves in May although it held its key rate at its last meeting in June.
Exports - which account for some 40% of Israel's economic activity - grew 15.2% in the first three months of 2013, above a prior estimate of 12.8% in the first three months of 2013. But excluding diamonds and start-up companies, exports gained 4.3%.
Private spending rose 5.3% - more than an initial 5% rate. Imports rose 1%.
Investment in fixed assets slid 20%, less than in the second estimate, for its fourth straight quarterly decline. Government spending edged down 0.4%.
Fourth-quarter GDP was unrevised at an annualized 2.6% rate.