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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $620,773,215 | $853,910,469 | $1,410,236,080 | $1,721,002,858 | $864,633,492 | $1,123,278,212 | $1,402,974,913 |
| Articles of iron or steel | $1,069,750,870 | $1,313,170,915 | $1,780,911,195 | $2,303,634,194 | $1,486,843,834 | $1,760,461,997 | $2,185,618,829 |
| Copper and articles thereof | $212,860,714 | $311,078,305 | $336,212,320 | $524,499,360 | $355,288,997 | $673,438,256 | $794,009,084 |
| Nickel and articles thereof | $6,777,339 | $6,988,068 | $9,998,061 | $8,978,050 | $5,039,634 | $20,738,355 | $39,338,616 |
| Aluminum and articles thereof | $263,917,833 | $373,358,402 | $471,077,362 | $509,932,116 | $311,493,055 | $468,939,997 | $604,213,677 |
| Lead and articles thereof | $2,400,799 | $4,868,561 | $10,509,161 | $7,062,742 | $5,158,368 | $6,486,720 | $6,694,313 |
| Zinc and articles thereof | $66,120,445 | $203,260,954 | $238,844,471 | $145,426,222 | $61,345,825 | $101,860,719 | $96,369,781 |
| Tin and articles thereof | $31,161,465 | $30,368,491 | $49,681,390 | $67,932,658 | $40,474,069 | $58,413,946 | $83,724,448 |
| Other base metals; cermets; articles thereof | $11,172,638 | $8,684,257 | $9,064,096 | $12,966,804 | $9,827,319 | $15,589,382 | $14,813,350 |
| Tools, implements, cutlery, spoons and forks, of base metal | $177,525,040 | $183,070,719 | $278,623,292 | $313,043,900 | $211,778,022 | $245,884,855 | $307,503,960 |
| Miscellaneous articles of base metal | $323,667,004 | $354,998,001 | $524,505,351 | $679,159,964 | $520,881,295 | $579,028,738 | $674,248,278 |
| Total | $2,786,127,362 | $3,643,757,142 | $5,119,662,779 | $6,293,638,868 | $3,872,763,910 | $5,054,121,177 | $6,209,509,249 |
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