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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $46,003,961 | $44,845,933 | $60,330,234 | $94,418,275 | $75,712,163 | $125,326,006 | $260,310,128 |
| Articles of iron or steel | $251,803,805 | $391,126,164 | $456,776,222 | $424,751,184 | $312,846,350 | $497,260,401 | $684,600,579 |
| Copper and articles thereof | $1,616,965 | $17,023,905 | $3,206,318 | $4,067,222 | $3,942,344 | $21,493,671 | $25,994,553 |
| Nickel and articles thereof | $270,543 | $8,600,651 | $307,963 | $562,790 | $3,617,698 | $410,310 | $1,969,750 |
| Aluminum and articles thereof | $9,888,440 | $15,565,744 | $41,432,128 | $24,909,480 | $34,333,248 | $42,150,923 | $54,028,278 |
| Lead and articles thereof | $631,272 | $176,201 | $217,884 | $718,857 | $1,064,034 | $676,808 | $365,619 |
| Zinc and articles thereof | $26,239 | $765,422 | $96,101 | $633,093 | $533,873 | $3,736,271 | $1,814,393 |
| Tin and articles thereof | $12,754 | $94,108 | $16,600 | $69,989 | $41,954 | $23,944 | $42,240 |
| Other base metals; cermets; articles thereof | $117,658 | $4,023,514 | $270,707 | $128,493 | $63,033 | $92,857 | $631,446 |
| Tools, implements, cutlery, spoons and forks, of base metal | $20,256,819 | $17,689,978 | $17,506,557 | $26,540,892 | $21,516,023 | $29,463,883 | $28,550,096 |
| Miscellaneous articles of base metal | $18,995,077 | $22,802,943 | $12,980,029 | $16,231,739 | $16,994,925 | $19,764,329 | $21,695,647 |
| Total | $349,623,533 | $522,714,563 | $593,140,743 | $593,032,014 | $470,665,645 | $740,399,403 | $1,080,002,729 |
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