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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $328,519,279 | $418,091,980 | $642,773,423 | $1,202,734,393 | $680,060,731 | $1,072,772,423 | $1,154,851,994 |
| Articles of iron or steel | $261,088,040 | $396,292,948 | $485,913,834 | $900,350,733 | $583,919,792 | $748,550,646 | $1,085,724,326 |
| Copper and articles thereof | $27,122,406 | $49,126,343 | $31,617,680 | $46,411,084 | $16,684,384 | $37,370,349 | $53,809,726 |
| Nickel and articles thereof | $2,292,940 | $3,471,123 | $7,901,198 | $6,935,075 | $3,257,053 | $3,347,538 | $5,258,267 |
| Aluminum and articles thereof | $46,141,844 | $59,170,302 | $102,653,725 | $114,489,690 | $96,998,620 | $146,757,447 | $185,314,560 |
| Lead and articles thereof | $1,752,752 | $2,005,248 | $4,361,807 | $1,981,400 | $23,198,456 | $10,509,267 | $16,049,128 |
| Zinc and articles thereof | $1,816,890 | $3,108,187 | $10,971,812 | $3,824,510 | $3,638,558 | $2,188,578 | $3,806,611 |
| Tin and articles thereof | $41,224 | $53,772 | $111,829 | $237,409 | $89,162 | $332,590 | $283,303 |
| Other base metals; cermets; articles thereof | $676,300 | $1,039,903 | $1,944,347 | $2,762,865 | $1,497,326 | $2,315,316 | $3,755,393 |
| Tools, implements, cutlery, spoons and forks, of base metal | $51,879,114 | $63,714,662 | $78,504,579 | $114,404,112 | $93,149,233 | $117,617,870 | $147,091,378 |
| Miscellaneous articles of base metal | $40,043,619 | $51,557,192 | $66,243,539 | $94,979,897 | $76,351,030 | $101,940,457 | $119,547,134 |
| Total | $761,374,408 | $1,047,631,660 | $1,432,997,773 | $2,489,111,168 | $1,578,844,345 | $2,243,702,481 | $2,775,491,820 |
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