Commodity2005200620072008200920102011
Carbon (carbon blacks & oth. forms of carbon, n.e.s.)$61,990,264$89,166,762$112,171,217$180,013,552$150,020,626$238,237,696$599,987,559
Total$61,990,264$89,166,762$112,171,217$180,013,552$150,020,626$238,237,696$599,987,559