<prompt> Translate the following text to SwahiliIt should be pointed out that high growth rates of both First-Class advertising and Standard A mail have contributed to shifting the balance in favor of more advertising than non-advertising mail in the Postal Service mailstream.  <response>: Inapaswa kutajwa kwamba viwango vya juu vya ukuaji wa matangazo ya kwanza ya darasa na barua ya kawaida ya kiwango cha A vimechangia kubadilisha usawa kwa niaba ya matangazo zaidi kuliko barua zisizo za matangazo katika mtiririko wa barua ya Huduma ya Posta. 