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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $3,081,081,603 | $3,819,469,982 | $4,695,783,659 | $6,363,180,179 | $3,341,193,479 | $5,388,935,896 | $6,174,444,517 |
| Articles of iron or steel | $2,713,930,055 | $3,149,472,034 | $4,339,798,623 | $5,966,682,788 | $4,217,615,337 | $6,172,353,620 | $6,260,068,431 |
| Copper and articles thereof | $1,280,350,638 | $2,784,903,780 | $2,886,789,891 | $2,306,908,442 | $1,520,952,869 | $5,412,417,206 | $2,942,487,974 |
| Nickel and articles thereof | $15,207,605 | $20,387,526 | $27,255,638 | $25,236,633 | $15,470,443 | $27,754,966 | $33,392,966 |
| Aluminum and articles thereof | $574,289,566 | $660,033,859 | $899,793,809 | $1,081,856,257 | $837,996,200 | $1,164,685,330 | $1,120,774,905 |
| Lead and articles thereof | $16,237,792 | $17,659,629 | $46,808,378 | $44,549,955 | $74,998,259 | $123,489,890 | $183,426,440 |
| Zinc and articles thereof | $28,362,669 | $514,040,152 | $382,948,051 | $407,653,434 | $339,605,416 | $664,811,333 | $784,445,480 |
| Tin and articles thereof | $10,148,500 | $30,727,995 | $17,136,371 | $31,474,363 | $15,785,594 | $9,240,023 | $7,192,700 |
| Other base metals; cermets; articles thereof | $12,541,127 | $9,954,574 | $14,417,418 | $17,399,990 | $17,326,212 | $16,660,699 | $27,099,974 |
| Tools, implements, cutlery, spoons and forks, of base metal | $461,359,332 | $527,198,082 | $479,171,013 | $555,605,998 | $393,724,287 | $526,299,255 | $783,644,616 |
| Miscellaneous articles of base metal | $209,525,205 | $260,566,071 | $312,235,042 | $373,817,135 | $297,625,017 | $368,560,905 | $439,958,379 |
| Total | $8,403,034,092 | $11,794,413,684 | $14,102,137,893 | $17,174,365,174 | $11,072,293,113 | $19,875,209,123 | $18,756,936,382 |
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