CPI COICOP is defined as a measure of average change of retail prices of goods and services used for personal consumption.

Prices of these products and services in September 2018 in relation to August 2018 decreased by 0.3% on average. Consumer prices in September 2018 increased, compared with the same month of the previous year, by 2.1%, while in relation to December 2017, the increase of 1.9% was recorded.

Observed by main groups according to destination of consumption in September 2018 in relation to the previous month, the decrease of prices was noted in the following groups: Recreation and culture (-5.6%), Communication (-0.3%), in the groups Food and non-alcoholic beverages and Furnishings, household equipment and routine household maintenance (by -0.2%, each group) and in the group Clothing and footwear (-0.1%). Increase of prices was recorded in the groups Restaurants and hotels (0.6%), Transport (0.5%), Health (0.4%) and Education (0.1%).

Prices of other products and services mostly remained unchanged.

Starting from 1999 the Statistical Office of the Republic of Serbia has not at disposal and may not  provide available certain data relative to AP Kosovo and Metohija and therefore these data are not included in the coverage for the Republic of Serbia (total).