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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $597,442,472 | $980,675,660 | $1,262,336,356 | $1,224,934,102 | $692,860,048 | $936,323,505 | $1,138,044,450 |
| Articles of iron or steel | $1,602,663,934 | $1,879,515,961 | $2,289,524,897 | $3,362,713,160 | $2,699,347,819 | $2,435,690,845 | $3,335,087,239 |
| Copper and articles thereof | $124,125,766 | $195,864,315 | $225,680,950 | $236,215,596 | $154,604,733 | $194,846,947 | $265,038,075 |
| Nickel and articles thereof | $1,944,301 | $1,891,402 | $3,151,885 | $3,198,030 | $2,500,469 | $4,555,107 | $3,530,754 |
| Aluminum and articles thereof | $703,223,985 | $871,091,294 | $1,109,461,605 | $1,136,170,771 | $811,351,897 | $845,869,781 | $970,180,579 |
| Lead and articles thereof | $4,054,200 | $4,929,484 | $7,043,646 | $4,681,418 | $7,038,747 | $8,064,130 | $11,486,628 |
| Zinc and articles thereof | $3,530,218 | $9,726,925 | $10,412,129 | $6,356,663 | $5,057,361 | $5,306,816 | $5,969,973 |
| Tin and articles thereof | $510,069 | $1,210,670 | $1,730,091 | $1,960,173 | $1,868,078 | $1,862,616 | $13,610,255 |
| Other base metals; cermets; articles thereof | $1,548,252 | $3,686,414 | $6,777,074 | $3,252,796 | $3,394,982 | $4,488,230 | $3,513,642 |
| Tools, implements, cutlery, spoons and forks, of base metal | $233,327,134 | $285,024,431 | $248,293,336 | $259,145,575 | $190,651,812 | $187,731,571 | $208,441,695 |
| Miscellaneous articles of base metal | $360,709,348 | $394,442,497 | $443,147,894 | $469,613,774 | $353,903,650 | $369,249,139 | $417,878,358 |
| Total | $3,633,079,679 | $4,628,059,053 | $5,607,559,863 | $6,708,242,058 | $4,922,579,596 | $4,993,988,687 | $6,372,781,648 |
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