text: The following table reÖects our net investment in our landÑlls, excluding non-depletable land, and our 
  depletion, amortization and accretion expense for the years ended December 31, 2004, 2003 and 2002. It also 
  shows on a pro forma basis what our depletion, amortization and accretion expense would have been if 
  SFAS 143 and the changes in accounting principles relating to our methane gas collection systems were 
  eÅective on January 1, 2002: 