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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $829,818,102 | $926,176,217 | $1,329,108,780 | $1,709,419,963 | $1,018,090,260 | $1,744,085,958 | $2,200,186,153 |
| Articles of iron or steel | $823,931,173 | $1,025,637,636 | $1,397,403,114 | $1,643,052,552 | $1,011,116,292 | $1,334,303,160 | $1,841,200,033 |
| Copper and articles thereof | $83,457,292 | $272,174,697 | $354,856,223 | $351,218,677 | $225,084,851 | $349,730,455 | $466,722,809 |
| Nickel and articles thereof | $1,496,367 | $1,570,135 | $4,144,419 | $7,496,461 | $4,163,458 | $7,038,744 | $5,239,426 |
| Aluminum and articles thereof | $528,311,685 | $775,375,190 | $806,976,093 | $827,457,268 | $504,990,455 | $699,125,119 | $952,924,370 |
| Lead and articles thereof | $23,399,739 | $25,489,324 | $74,179,084 | $63,838,593 | $26,039,964 | $41,378,372 | $62,513,054 |
| Zinc and articles thereof | $51,031,002 | $60,917,688 | $166,108,382 | $118,813,074 | $13,053,930 | $3,145,962 | $15,571,105 |
| Tin and articles thereof | $212,133 | $441,987 | $723,572 | $1,077,670 | $4,837,122 | $6,906,643 | $2,403,404 |
| Other base metals; cermets; articles thereof | $6,433,277 | $12,352,981 | $17,967,804 | $32,499,084 | $12,673,234 | $20,834,731 | $29,927,497 |
| Tools, implements, cutlery, spoons and forks, of base metal | $25,270,663 | $29,607,151 | $63,574,522 | $75,387,179 | $81,226,480 | $75,582,978 | $100,649,668 |
| Miscellaneous articles of base metal | $65,500,958 | $121,765,442 | $181,091,559 | $189,535,685 | $151,210,389 | $220,209,228 | $335,335,383 |
| Total | $2,438,862,391 | $3,251,508,448 | $4,396,133,552 | $5,019,796,206 | $3,052,486,435 | $4,502,341,350 | $6,012,672,902 |
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