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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $2,092,503,876 | $2,392,245,882 | $2,882,187,645 | $2,797,547,982 | $1,531,264,197 | $2,021,147,814 | $2,054,458,083 |
| Articles of iron or steel | $1,487,499,539 | $1,463,163,104 | $1,550,032,837 | $1,704,753,607 | $1,346,442,225 | $1,520,505,469 | $1,644,156,699 |
| Copper and articles thereof | $1,988,511,986 | $2,994,660,843 | $3,342,664,242 | $3,080,396,798 | $2,395,583,030 | $3,020,621,282 | $2,907,984,548 |
| Nickel and articles thereof | $383,268,060 | $525,126,307 | $783,632,276 | $443,216,645 | $277,257,936 | $310,799,116 | $265,087,359 |
| Aluminum and articles thereof | $893,259,028 | $1,033,859,848 | $1,003,768,550 | $971,970,910 | $749,601,781 | $933,746,291 | $1,106,292,238 |
| Lead and articles thereof | $24,335,160 | $31,945,530 | $59,062,512 | $20,864,422 | $3,822,432 | $6,617,333 | $3,174,897 |
| Zinc and articles thereof | $342,904,333 | $619,916,325 | $588,963,213 | $281,774,155 | $236,406,028 | $325,113,575 | $304,101,887 |
| Tin and articles thereof | $113,556,741 | $111,468,791 | $118,954,953 | $129,557,003 | $112,117,313 | $119,840,779 | $163,260,854 |
| Other base metals; cermets; articles thereof | $39,821,883 | $85,790,034 | $79,607,359 | $76,635,182 | $50,216,101 | $82,284,568 | $101,545,729 |
| Tools, implements, cutlery, spoons and forks, of base metal | $773,691,748 | $790,488,089 | $776,930,115 | $756,105,939 | $586,819,192 | $770,279,956 | $760,595,361 |
| Miscellaneous articles of base metal | $1,010,709,894 | $1,033,757,367 | $1,096,489,680 | $1,048,488,686 | $764,866,311 | $921,154,235 | $962,474,857 |
| Total | $9,150,062,248 | $11,082,422,120 | $12,282,293,382 | $11,311,311,329 | $8,054,396,546 | $10,032,110,418 | $10,273,132,512 |
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