<prompt> Translate the following text to EnglishTangu mwaka 1993 hadi 1994, kiasi cha bidhaa za aina ya kwanza vilipungua kwa asilimia 0.2, lakini ongezeko la asilimia 6.8 la bidhaa za aina ya kwanza zilizopangwa mapema lilitokeza ongezeko la asilimia 2.4 la bidhaa za aina ya kwanza.  <response>: From 1993 to 1994, single-piece First-Class volume fell by 0.2 percent, but a 6.8 percent increase in pre-sorted First Class volume resulted in a net 2.4 percent increase in First-Class volume. 