Commodity2005200620072008200920102011
Copper waste & scrap$49,814,743$78,642,692$101,735,181$100,742,142$70,730,233$113,999,080$128,361,784
Total$49,814,743$78,642,692$101,735,181$100,742,142$70,730,233$113,999,080$128,361,784