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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $968,770,217 | $1,147,235,984 | $1,623,000,418 | $2,228,432,509 | $844,584,022 | $1,506,860,461 | $2,233,471,733 |
| Articles of iron or steel | $492,859,925 | $700,239,732 | $964,306,120 | $1,339,385,911 | $582,516,819 | $851,083,269 | $1,145,992,201 |
| Copper and articles thereof | $144,428,683 | $251,905,885 | $283,421,950 | $254,065,799 | $102,714,818 | $151,587,541 | $219,024,478 |
| Nickel and articles thereof | $65,626,166 | $78,880,235 | $158,327,847 | $100,988,828 | $59,485,363 | $119,731,053 | $156,886,670 |
| Aluminum and articles thereof | $200,361,703 | $244,340,603 | $329,035,624 | $400,968,539 | $244,921,792 | $319,283,509 | $424,729,076 |
| Lead and articles thereof | $11,026,486 | $12,110,327 | $30,464,246 | $45,768,746 | $24,252,290 | $58,958,604 | $75,033,308 |
| Zinc and articles thereof | $44,196,853 | $105,255,128 | $98,352,307 | $61,523,309 | $33,318,287 | $53,197,099 | $52,087,247 |
| Tin and articles thereof | $6,804,320 | $5,586,292 | $13,279,742 | $9,778,068 | $5,516,598 | $8,831,371 | $14,490,090 |
| Other base metals; cermets; articles thereof | $47,498,778 | $52,058,667 | $65,130,044 | $74,538,964 | $64,699,263 | $72,294,666 | $96,522,700 |
| Tools, implements, cutlery, spoons and forks, of base metal | $83,026,757 | $111,835,775 | $154,565,704 | $211,764,974 | $130,013,084 | $164,837,498 | $222,233,373 |
| Miscellaneous articles of base metal | $119,262,748 | $166,118,503 | $213,611,759 | $308,172,345 | $161,701,466 | $216,754,049 | $261,780,063 |
| Total | $2,183,862,636 | $2,875,567,131 | $3,933,495,761 | $5,035,387,992 | $2,253,723,802 | $3,523,419,120 | $4,902,250,939 |
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