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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $549,195,251 | $632,241,385 | $805,019,563 | $1,261,141,185 | $445,567,667 | $1,049,490,475 | $1,093,782,350 |
| Articles of iron or steel | $575,740,527 | $537,887,676 | $809,428,592 | $1,079,041,787 | $870,603,139 | $850,049,245 | $1,225,946,951 |
| Copper and articles thereof | $156,010,197 | $254,356,649 | $308,726,385 | $343,550,632 | $217,532,687 | $291,518,640 | $430,870,256 |
| Nickel and articles thereof | $24,882,032 | $27,544,032 | $43,804,768 | $39,852,924 | $13,012,239 | $30,589,388 | $40,969,354 |
| Aluminum and articles thereof | $91,735,454 | $133,234,178 | $156,411,206 | $196,430,974 | $147,974,547 | $220,050,365 | $285,684,550 |
| Lead and articles thereof | $653,645 | $1,038,565 | $1,154,821 | $2,330,892 | $3,638,532 | $3,452,382 | $2,265,703 |
| Zinc and articles thereof | $28,388,871 | $63,639,241 | $73,939,022 | $54,653,183 | $19,804,774 | $20,455,098 | $19,881,107 |
| Tin and articles thereof | $10,843,196 | $12,992,904 | $18,138,125 | $27,873,867 | $14,485,009 | $28,916,525 | $27,843,774 |
| Other base metals; cermets; articles thereof | $14,836,405 | $19,849,280 | $20,288,089 | $28,653,791 | $15,707,293 | $20,268,188 | $20,686,626 |
| Tools, implements, cutlery, spoons and forks, of base metal | $169,081,962 | $169,775,044 | $215,018,522 | $288,390,095 | $267,443,236 | $275,218,687 | $326,129,185 |
| Miscellaneous articles of base metal | $108,401,240 | $149,362,413 | $194,886,123 | $242,751,489 | $182,589,244 | $280,756,605 | $369,634,853 |
| Total | $1,729,768,780 | $2,001,921,367 | $2,646,815,216 | $3,564,670,819 | $2,198,358,367 | $3,070,765,598 | $3,843,694,709 |
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