Germany's football Bundesliga has achieved record revenues for the 10th season in a row, the German Football League (DFL) said Thursday. The league posted revenues of 2.45 billion euros (2.85 billion dollars) in the 2013-2014 season, up 12.9 percent over the previous year, figures in the 2015 Bundesliga Report show. Thirteen of the 18 clubs in the top-flight Bundesliga operated profitably last season, one more than the previous year. Overall 24 of the 36 first and second-division clubs made a profit after tax, dpa reported. "Looking forward, the outlook remains upbeat as Bundesliga's economic growth is continuing unabated," Bundesliga chief executive Christian Seifert said. Seifert said turnover next season looked set to cross the 2.5-billion-euro threshold for the first time.