International Consolidated Airlines Group (IAG), the company formed by the merger of British Airways and Iberia, saw a year-on-year rise in passenger traffic in July.Group traffic measured in Revenue Passenger Kilometres rose by 3.5% versus July 2010, while capacity measured in Available Seat Kilometres was up 2.9%.At the lucrative first class and business class end of the market, premium traffic for the month of July grew by 14.2% from the yewr before, while non-premium traffic grew 2.0%.--jh