Commodity200520062007200820092010
Hard rubber (e.g., ebonite) in all forms, incl. waste & scrap; arts. of har ...$8,116,025$8,962,423$11,168,753$12,646,413$8,205,585$10,010,066
Total$8,116,025$8,962,423$11,168,753$12,646,413$8,205,585$10,010,066