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Agricultural output fell 9.7 percent in the quarter, while construction expanded 0.5 percent, compared with growth of 4 percent the previous quarter and 18.5 percent in 2006, when the economy as a whole grew 6.9 percent. Industrial production increased at an average rate of 5.2 percent in the fourth quarter.
Gross domestic product in 2007 was $659 billion, the agency said. Growth for the year was 4.5 percent. The government's target was 5 percent.
A court case to outlaw the ruling Justice and Development Party which is rumbling around in the background may also lead to political instability, further damping the economic expansion.
Consumer confidence has also taken a hit, and the index of consumer confidence fell from a previous high of 96.2 to 93.9 during the fourth quarter and in February hit 87.6, the lowest since records began in 2003.
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Private consumption increased an annual 2.9 percent in the quarter, slowing from 8.2 percent three months earlier.
The central bank cut its benchmark overnight borrowing rate by a total of 2.25 percentage points to 15.25 percent between September and February before halting its reductions this month. Any pick-up in domestic demand will be limited by the impact of the global credit squeeze, central bank Governor Durmus Yilmaz said on March 13.