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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $376,014,576 | $456,360,270 | $601,101,873 | $834,749,645 | $424,186,049 | $600,814,604 | $833,574,095 |
| Articles of iron or steel | $132,774,446 | $158,861,880 | $235,817,111 | $315,123,330 | $204,728,822 | $244,303,704 | $349,639,024 |
| Copper and articles thereof | $28,681,866 | $65,566,795 | $78,829,898 | $89,530,445 | $57,997,303 | $88,931,455 | $154,201,771 |
| Nickel and articles thereof | $2,135,467 | $410,420 | $443,156 | $692,589 | $29,376,362 | $25,446,646 | $21,266,404 |
| Aluminum and articles thereof | $84,102,357 | $55,498,564 | $67,366,249 | $72,398,898 | $48,563,707 | $63,254,930 | $98,567,397 |
| Lead and articles thereof | $774,390 | $281,188 | $1,777,345 | $1,193,900 | $4,349,570 | $3,859,755 | $3,453,949 |
| Zinc and articles thereof | $633,244 | $1,605,786 | $2,040,687 | $760,399 | $1,141,077 | $1,045,187 | $1,049,448 |
| Tin and articles thereof | $3,776 | $84,175 | $2,897 | $62,203 | $10,182 | $2,323,855 | $85,176 |
| Other base metals; cermets; articles thereof | $229,100 | $1,785,551 | $2,709,987 | $3,510,533 | $273,289 | $572,462 | $1,189,498 |
| Tools, implements, cutlery, spoons and forks, of base metal | $6,598,840 | $10,382,741 | $17,556,217 | $11,355,715 | $6,831,992 | $10,860,003 | $14,671,252 |
| Miscellaneous articles of base metal | $9,467,815 | $11,019,732 | $11,755,232 | $11,836,957 | $10,113,544 | $15,011,183 | $20,261,823 |
| Total | $641,415,877 | $761,857,102 | $1,019,400,652 | $1,341,214,614 | $787,571,897 | $1,056,423,784 | $1,497,959,837 |
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