Commodity2005200620072008200920102011
Tin waste & scrap$2,167,967$3,185,393$4,742,251$8,986,735$4,771,242$6,472,705$5,799,246
Total$2,167,967$3,185,393$4,742,251$8,986,735$4,771,242$6,472,705$5,799,246