Consumer prices in December were 0.9 pct higher than in November, and 2.1 pct higher year-on-year, according to final figures from the Federal Statistics office. Preliminary data released on Dec 23 had shown a month-on-month rise of 0.8 pct and a year-on-year rise of 2.1 pct. Economists polled by AFX News had forecast the data to be unchanged from the preliminary figures.