Data from 2017 are WARC estimates, calculated by applying the World Federation of Advertisers' (WFA)* media inflation figures to historic cost per thousand (CPM) data.
CPM data to 2016 have been provided by OMD's local offices. More information about the methodology OMD used for each market, medium and audience can be found here.
* The WFA's Outlook Tool is an industry-wide report on how media prices are forecast to evolve, globally, in the year ahead. The WFA has inflation figures across 38 of the largest spending markets across a variety of formats....