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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $428,548,399 | $623,270,680 | $1,003,567,383 | $1,321,685,990 | $428,872,327 | $498,744,840 | $753,416,023 |
| Articles of iron or steel | $326,959,432 | $446,713,891 | $644,229,527 | $770,037,310 | $412,357,869 | $446,378,433 | $488,778,805 |
| Copper and articles thereof | $153,150,912 | $307,100,258 | $451,528,619 | $662,917,258 | $241,157,628 | $456,208,877 | $657,560,908 |
| Nickel and articles thereof | $4,097,091 | $5,918,205 | $9,486,600 | $5,783,866 | $2,414,965 | $3,737,718 | $5,904,905 |
| Aluminum and articles thereof | $217,898,637 | $373,653,377 | $483,296,551 | $458,794,302 | $309,129,604 | $363,385,338 | $416,954,556 |
| Lead and articles thereof | $11,394,025 | $14,915,501 | $46,658,402 | $47,151,827 | $30,817,252 | $39,749,612 | $60,162,933 |
| Zinc and articles thereof | $3,563,217 | $15,634,771 | $14,435,952 | $14,790,987 | $4,672,096 | $6,502,868 | $13,070,440 |
| Tin and articles thereof | $918,535 | $3,202,070 | $2,889,906 | $3,580,372 | $2,417,882 | $3,106,628 | $7,677,361 |
| Other base metals; cermets; articles thereof | $7,565,406 | $10,758,450 | $11,595,739 | $12,010,502 | $5,363,869 | $7,734,753 | $7,068,855 |
| Tools, implements, cutlery, spoons and forks, of base metal | $52,022,702 | $62,376,235 | $89,415,884 | $113,897,449 | $61,963,818 | $64,637,569 | $77,553,082 |
| Miscellaneous articles of base metal | $86,472,705 | $113,796,082 | $150,454,214 | $170,038,812 | $117,169,333 | $107,203,217 | $124,614,494 |
| Total | $1,292,591,061 | $1,977,339,520 | $2,907,558,777 | $3,580,688,675 | $1,616,336,643 | $1,997,389,853 | $2,612,762,362 |
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