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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $1,503,697,414 | $1,553,504,851 | $1,832,502,684 | $1,781,788,793 | $1,093,829,498 | $1,384,877,565 | $1,490,851,639 |
| Articles of iron or steel | $1,257,921,792 | $1,267,146,736 | $1,363,940,934 | $1,387,124,470 | $1,046,543,514 | $1,227,240,437 | $1,251,942,351 |
| Copper and articles thereof | $1,730,493,902 | $2,515,758,027 | $2,729,601,691 | $2,349,793,825 | $1,946,165,935 | $2,692,469,284 | $2,545,856,120 |
| Nickel and articles thereof | $214,925,390 | $334,322,293 | $389,685,480 | $234,834,897 | $175,469,247 | $206,660,732 | $187,475,219 |
| Aluminum and articles thereof | $733,490,535 | $845,373,046 | $895,376,795 | $896,550,822 | $690,006,274 | $833,704,287 | $924,335,239 |
| Lead and articles thereof | $25,268,546 | $31,710,458 | $50,422,881 | $15,699,969 | $10,565,371 | $3,573,004 | $4,360,841 |
| Zinc and articles thereof | $321,398,721 | $494,621,996 | $501,350,612 | $316,472,610 | $198,174,320 | $289,847,585 | $287,676,592 |
| Tin and articles thereof | $79,295,163 | $84,610,117 | $131,668,351 | $147,720,008 | $105,631,400 | $173,457,704 | $291,346,416 |
| Other base metals; cermets; articles thereof | $27,444,158 | $59,301,280 | $52,138,073 | $58,335,563 | $39,667,584 | $73,782,622 | $96,361,740 |
| Tools, implements, cutlery, spoons and forks, of base metal | $884,075,846 | $882,443,927 | $904,977,148 | $839,268,567 | $619,411,193 | $747,875,388 | $771,472,185 |
| Miscellaneous articles of base metal | $1,240,219,746 | $1,358,843,750 | $1,451,837,483 | $1,412,880,893 | $1,091,481,807 | $1,291,245,807 | $1,355,835,373 |
| Total | $8,018,231,213 | $9,427,636,481 | $10,303,502,132 | $9,440,470,417 | $7,016,946,143 | $8,924,734,415 | $9,207,513,715 |
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