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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $101,250,000 | $142,026,000 | $161,971,000 | $188,956,000 | $121,451,000 | $290,811,000 | $254,896,000 |
| Articles of iron or steel | $313,019,000 | $434,982,000 | $536,404,000 | $995,858,000 | $472,966,000 | $462,899,000 | $510,789,000 |
| Copper and articles thereof | $119,286,000 | $127,865,000 | $129,604,000 | $137,727,000 | $63,013,000 | $134,828,000 | $195,551,000 |
| Nickel and articles thereof | $2,234,000 | $1,435,000 | $2,108,000 | $2,057,000 | $3,656,000 | $1,624,000 | $2,314,000 |
| Aluminum and articles thereof | $132,014,000 | $192,327,000 | $235,519,000 | $207,160,000 | $131,748,000 | $180,490,000 | $216,428,000 |
| Lead and articles thereof | $14,423,000 | $25,674,000 | $58,983,000 | $48,195,000 | $31,095,000 | $48,711,000 | $49,951,000 |
| Zinc and articles thereof | $1,923,000 | $10,840,000 | $6,932,000 | $2,478,000 | $2,642,000 | $4,013,000 | $3,114,000 |
| Tin and articles thereof | $51,000 | $8,872,000 | $14,000 | $336,000 | $255,000 | $536,000 | $261,000 |
| Other base metals; cermets; articles thereof | $101,825,000 | $112,576,000 | $126,124,000 | $154,028,000 | $90,867,000 | $149,508,000 | $161,569,000 |
| Tools, implements, cutlery, spoons and forks, of base metal | $637,784,000 | $693,254,000 | $798,765,000 | $863,069,000 | $540,048,000 | $800,394,000 | $947,072,000 |
| Miscellaneous articles of base metal | $59,204,000 | $72,859,000 | $92,072,000 | $102,642,000 | $69,194,000 | $68,061,000 | $66,517,000 |
| Total | $1,483,013,000 | $1,822,710,000 | $2,148,496,000 | $2,702,506,000 | $1,526,935,000 | $2,141,875,000 | $2,408,462,000 |
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