Commodity2005200620072008200920102011
Tin waste & scrap$4,219,706$7,290,317$6,126,009$10,348,066$6,311,776$10,980,093$14,732,424
Total$4,219,706$7,290,317$6,126,009$10,348,066$6,311,776$10,980,093$14,732,424