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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $13,325,551 | $18,761,676 | $19,082,942 | $24,446,469 | $14,722,260 | $9,747,323 | $13,104,513 |
| Articles of iron or steel | $37,423,439 | $42,311,545 | $37,171,631 | $32,738,257 | $26,141,306 | $29,838,571 | $33,201,878 |
| Copper and articles thereof | $2,031,376 | $3,185,344 | $4,495,053 | $3,559,567 | $2,039,885 | $2,391,780 | $2,460,825 |
| Nickel and articles thereof | $23,916 | $29,401 | $94,201 | $27,146 | $4,506 | $16,418 | $16,600 |
| Aluminum and articles thereof | $8,634,041 | $10,796,535 | $9,179,799 | $9,210,268 | $7,797,656 | $6,577,015 | $9,289,672 |
| Lead and articles thereof | $100,821 | $278,648 | $66,604 | $456,440 | $199,341 | $19,766 | $52,497 |
| Zinc and articles thereof | $9,285 | $38,721 | $49,546 | $34,710 | $18,265 | $16,299 | $22,165 |
| Tin and articles thereof | $3,753,074 | $3,101,330 | $3,771,461 | $3,428,145 | $2,785,329 | $4,012,292 | $2,740,601 |
| Other base metals; cermets; articles thereof | $34,845 | $33,211 | $27,368 | $30,685 | $13,373 | $14,953 | $36,507 |
| Tools, implements, cutlery, spoons and forks, of base metal | $5,638,648 | $5,455,517 | $5,676,587 | $5,974,068 | $4,942,089 | $4,486,520 | $4,916,826 |
| Miscellaneous articles of base metal | $8,127,654 | $10,372,006 | $10,608,073 | $10,548,232 | $8,080,509 | $8,531,701 | $8,843,951 |
| Total | $79,102,650 | $94,363,934 | $90,223,265 | $90,453,987 | $66,744,519 | $65,652,638 | $74,686,035 |
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