Industrial production rose a working-day adjusted 8.9% year-on-year in December. Economists had expected a 1.6% rise.
On a seasonally adjusted basis, industrial production rose 0.8% monthly in December.
Among the main industrial groups, output of non-durable goods increased 20.7% and that of consumer durables gained by 18.0%.
Production of capital goods rose 8.3%.
Output of intermediate goods gained 5.6% and those of energy grew 9.5%. In 2021 as a whole, industrial production grew 10.4%.