NEW YORK: Fourth quarter revenues dropped 12.8% for the Constituency Management Group (CMG) division of The Interpublic Group (IPG), which contains the holding company's PR agencies, going to $260.7 million from $299 million in the year-ago period. For the overall year, though, which ended December 31, 2008, CMG's revenues were up 4% to about $1.1 billion.