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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $883,100,352 | $1,137,036,586 | $1,992,191,768 | $2,550,177,890 | $894,606,221 | $1,432,058,237 | $2,083,259,678 |
| Articles of iron or steel | $1,131,820,863 | $1,603,657,438 | $2,316,422,507 | $2,673,899,500 | $1,789,918,530 | $2,006,440,969 | $2,377,858,499 |
| Copper and articles thereof | $168,087,270 | $407,286,523 | $600,411,921 | $687,991,314 | $393,466,695 | $597,658,976 | $793,810,985 |
| Nickel and articles thereof | $22,619,657 | $34,552,666 | $45,313,574 | $27,756,722 | $18,770,795 | $29,233,535 | $33,924,712 |
| Aluminum and articles thereof | $272,488,646 | $384,512,719 | $520,139,360 | $617,661,220 | $376,543,014 | $520,993,606 | $637,325,890 |
| Lead and articles thereof | $2,874,963 | $3,360,311 | $5,052,590 | $6,439,305 | $18,065,867 | $29,132,057 | $38,545,164 |
| Zinc and articles thereof | $22,849,459 | $35,828,857 | $57,092,182 | $31,707,962 | $28,609,172 | $52,617,083 | $81,421,636 |
| Tin and articles thereof | $5,184,487 | $9,876,687 | $8,610,791 | $11,907,055 | $6,732,577 | $10,448,374 | $14,690,751 |
| Other base metals; cermets; articles thereof | $20,621,820 | $27,546,006 | $36,500,508 | $50,799,421 | $33,725,851 | $38,911,591 | $53,304,665 |
| Tools, implements, cutlery, spoons and forks, of base metal | $175,408,573 | $190,309,179 | $276,670,302 | $306,340,068 | $199,081,784 | $225,771,312 | $277,575,828 |
| Miscellaneous articles of base metal | $292,028,383 | $384,460,199 | $518,495,094 | $582,773,553 | $444,163,710 | $504,143,461 | $562,564,220 |
| Total | $2,997,084,473 | $4,218,427,171 | $6,376,900,597 | $7,547,454,010 | $4,203,684,216 | $5,447,409,201 | $6,954,282,028 |
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