Consumer prices rose 0.38% in December, according to non-seasonally adjusted figures.

The core index, which strips out some volatile food and energy prices, rose 0.65% during the month, and hit 8.35% on an annual basis.

Economists polled by Reuters had expected annual headline inflation to come in at 7.85% and core inflation at 8.35%.

(Reporting by Isabel Woodford; Editing by Alex Richardson)