Adele Album '21' Tops On The World Level For Second Year Consecutively

British singer's album '21' remained on top for the second year in the world. Dring 2012 only in the USA 4.4 million copies of the the album that includes popular songs like 'Rolling in the deep' and 'rumor it is' were sold while, in 2011 5.8 million copies of the album were sold. The International organisation of Photographic Industry said that by January 2011 its 8.3 million copies has been sold. It said that 0.3 percent increase in the collective income of music industry after 1999 has been recorded. With this increase the collective music income has reached to US $ 16.5 million. According to music week journal this increase is very important because the lowering graph of music income has risen substantially.