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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $711,260,760 | $944,564,125 | $1,264,122,621 | $1,302,413,990 | $570,850,959 | $861,671,455 | $1,063,434,435 |
| Articles of iron or steel | $535,637,476 | $610,025,765 | $802,617,321 | $938,486,432 | $583,075,694 | $611,528,030 | $729,359,102 |
| Copper and articles thereof | $132,477,121 | $241,151,253 | $278,176,346 | $250,491,468 | $149,941,560 | $235,125,013 | $308,716,329 |
| Nickel and articles thereof | $27,723,529 | $36,823,591 | $69,350,217 | $81,273,412 | $36,614,000 | $87,516,727 | $83,286,576 |
| Aluminum and articles thereof | $534,743,935 | $698,650,605 | $869,292,644 | $858,171,443 | $516,779,099 | $763,746,688 | $842,349,505 |
| Lead and articles thereof | $13,892,832 | $17,252,547 | $44,374,896 | $37,774,537 | $24,990,347 | $44,628,012 | $56,467,652 |
| Zinc and articles thereof | $36,581,191 | $101,181,938 | $118,418,006 | $62,449,241 | $45,112,339 | $51,701,657 | $57,212,300 |
| Tin and articles thereof | $2,621,945 | $1,864,887 | $3,313,389 | $3,950,282 | $2,447,846 | $3,800,791 | $4,697,764 |
| Other base metals; cermets; articles thereof | $21,939,094 | $24,933,790 | $28,081,408 | $36,254,575 | $19,112,288 | $29,165,497 | $37,196,075 |
| Tools, implements, cutlery, spoons and forks, of base metal | $105,255,776 | $225,628,659 | $250,997,458 | $256,250,832 | $177,450,631 | $177,219,790 | $195,474,715 |
| Miscellaneous articles of base metal | $128,875,747 | $144,035,591 | $185,933,191 | $209,226,563 | $162,273,450 | $177,907,992 | $177,726,107 |
| Total | $2,251,009,406 | $3,046,112,751 | $3,914,677,497 | $4,036,742,775 | $2,288,648,213 | $3,044,011,652 | $3,555,920,560 |
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