<prompt> Translate the following text to EnglishIngawa biashara ya vitabu imeongezeka kutegemea blockbusters mpya, asilimia 53 ya mauzo ya Barnes Noble, kwa mfano, hutoka kwa vitabu vya orodha ya nyuma, yaani, vitabu vilivyochapishwa zaidi ya miezi 12 iliyopita.  <response>: Although the book business has grown more dependent on new blockbusters, 53 percent of Barnes Nobles sales, for example, come from backlist books, i.e., books published more than 12 months ago. 