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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $12,893,065 | $10,981,803 | $24,319,772 | $33,018,402 | $19,137,633 | $18,967,651 | $31,198,699 |
| Articles of iron or steel | $18,006,459 | $17,814,466 | $21,612,551 | $27,604,555 | $40,636,429 | $26,474,722 | $21,727,472 |
| Copper and articles thereof | $1,148,540 | $1,382,789 | $4,216,577 | $5,742,780 | $3,143,571 | $4,331,037 | $4,743,405 |
| Nickel and articles thereof | $55,405 | $306 | $18,829 | | $16,194 | | $72,865 |
| Aluminum and articles thereof | $1,547,399 | $258,559 | $546,200 | $339,377 | $3,825,038 | $1,359,727 | $1,409,067 |
| Lead and articles thereof | $2,981 | $17,223 | $281,244 | $794,872 | $1,559,089 | $1,782,002 | $2,183,120 |
| Zinc and articles thereof | $30,990 | $96,935 | $353,817 | $89,990 | $29,515 | $67,541 | $64,261 |
| Tin and articles thereof | $137,675 | $3,689 | $1,339 | | | | |
| Other base metals; cermets; articles thereof | $2,361,159 | $3,486,879 | $6,279,949 | $10,844,419 | $2,455,930 | | |
| Tools, implements, cutlery, spoons and forks, of base metal | $2,176,353 | $2,138,933 | $3,276,825 | $3,916,055 | $2,845,455 | $2,711,996 | $2,650,403 |
| Miscellaneous articles of base metal | $2,874,418 | $2,526,442 | $2,538,636 | $3,816,365 | $8,258,621 | $4,224,756 | $2,791,511 |
| Total | $41,234,444 | $38,708,024 | $63,445,739 | $86,166,815 | $81,907,475 | $59,919,432 | $66,840,803 |
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