Commodity2005200620072008200920102011
Carbon (carbon blacks & oth. forms of carbon, n.e.s.)$29,081,889$44,189,771$37,896,532$56,049,105$51,839,584$159,132,849$230,529,912
Total$29,081,889$44,189,771$37,896,532$56,049,105$51,839,584$159,132,849$230,529,912