. at december 30 , 2006 , our consolidated trade payables balance was within 3% ( 3 % ) of the balance at year-end 2005 . in contrast , our trade payables balance increased approximately 22% ( 22 % ) during 2005 , from a historically-low level at the end of 2004 . the higher inventory balance was principally related to higher commodity prices for our raw material and packaging inventories and to a lesser extent , the overall increase in the average number of weeks of inventory on hand