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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $24,599,240 | $29,447,470 | $44,340,065 | $48,910,149 | $69,759,313 | $40,963,226 | $33,090,240 |
| Articles of iron or steel | $74,697,265 | $65,991,678 | $102,538,460 | $136,693,582 | $137,388,548 | $122,554,955 | $67,393,964 |
| Copper and articles thereof | $6,519,888 | $8,534,547 | $15,223,153 | $20,343,960 | $9,005,778 | $14,333,432 | $12,579,031 |
| Nickel and articles thereof | $114,015 | $208,239 | $391,901 | $235,996 | $82,060 | $190,204 | $62,063 |
| Aluminum and articles thereof | $17,218,827 | $18,673,114 | $28,653,497 | $28,538,142 | $26,158,149 | $21,727,670 | $18,339,281 |
| Lead and articles thereof | $68,016 | $112,166 | $307,399 | $95,873 | $88,478 | $77,293 | $65,411 |
| Zinc and articles thereof | $470,264 | $1,346,077 | $2,853,646 | $1,096,610 | $494,444 | $540,985 | $356,154 |
| Tin and articles thereof | $65,797 | $35,413 | $39,392 | $110,193 | $48,221 | $39,062 | $31,377 |
| Other base metals; cermets; articles thereof | $38,190 | $59,710 | $84,903 | $146,167 | $89,091 | $37,038 | $743 |
| Tools, implements, cutlery, spoons and forks, of base metal | $12,937,210 | $12,393,621 | $19,077,076 | $16,728,296 | $15,622,273 | $20,371,799 | $14,954,727 |
| Miscellaneous articles of base metal | $11,150,801 | $14,260,452 | $17,471,174 | $16,554,746 | $14,149,383 | $15,894,644 | $11,725,982 |
| Total | $147,879,513 | $151,062,487 | $230,980,666 | $269,453,714 | $272,885,738 | $236,730,308 | $158,598,973 |
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