Industrial output in 2017 overall underperformed at 1% growth.
Level is the highest seen since May last year and comes after five consecutive monthly declines.
Output expands at 7.6%, down from the 7.8% annual growth recorded for November.
Despite the last minute present shopping rush in the 52nd week, the index has been running behind the last three years for almost all of 2017.
NPLs have been a severe problem in both Central and Southeast Europe since the global financial crisis, and remain particularly high in Bulgaria, Croatia and Slovenia.
Estonia's producer price index grew 2.7% y/y in December, down 0.6pp on November's figure.
Mixed picture in the Western Balkans, with growth in Q3 2017 ranging from 0.2% in Macedonia to a robust 4.7% in Montenegro.
Prices have been increasing steadily, mainly driven by sales in fellow eurozone members.
The reading marks a slowdown in the pace of growth after turnover expanded 8.8% y/y in November.
Adjusted for calendar effects, output expanded by a solid 7.3% y/y.
The new all-time high follows the record of 1.34mn sold units set the previous year.
Debt figure stood at $111.75bn by end of November compared to $111.45bn at end-October with Turkey dependent on external borrowing to fund its chronic current account deficit.
Data also shows total outflows amounted to $99mn since start of the new year.