The chart above is online here, along with other data on the web site of The Silverstein Group, a communications advisory business. According to the Silverstein Group’s web site, it uses "data provided by Kantar Media‘s Campaign Media Analysis Group, analyzes television product legal advertising in 211 media markets and on 11 national broadcast networks and more than 80 national cable networks."     The Silverstein web site includes monthly data of various types regarding product liability advertising. For example, the firm reports on attorney advertising regarding product liability cases drugs and medical devices. As to asbestos, the firm also provided the following further information:   "Focus: Asbestos & mesothelioma ads dip after early summer spike
Spending on mesothelioma and asbestos legal ads declined in August following steep monthly increases in June and July. Spending has still not returned to the levels of the beginning of the year though. (See graph above)   This year, over $21 million has been spent on mesothelioma and asbestos-related legal ads through the end of August   Law firms purchasing these ads cast a wide net in their efforts to attract potential claimants. Two-thirds of asbestos advertising spending has been devoted to national cable and broadcast networks. Just over 10 percent of 2013 asbestos legal advertising spending has been spent in the nation’s largest media market — New York City."