The overall index of producer and import prices rose by 0.2% in December 2017 compared to the previous month, reaching 101.9 points (base of December 2015 = 100). Compared to December 2016, the price level of the total supply of domestic and imported products increased by 1.8%. The average annual inflation in 2017 was 0.9%. This is evident from the figures of the Federal Statistical Office (FSO). The average annual tax rate 2017 corresponds to the rate of change between the average for 2017 and the average for 2016. The annual average is calculated as the arithmetic average of the 12 monthly indices of the calendar year.