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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $1,162,276,860 | $978,361,345 | $1,162,480,137 | $4,330,292,419 | $3,062,591,243 | $2,625,865,817 | $3,169,122,769 |
| Articles of iron or steel | $365,451,887 | $400,089,901 | $554,098,784 | $2,679,171,273 | $2,609,983,620 | $2,768,990,030 | $2,518,814,770 |
| Copper and articles thereof | $168,901,945 | $151,998,688 | $208,640,932 | $1,515,974,964 | $601,919,181 | $548,533,122 | $958,701,569 |
| Nickel and articles thereof | $3,712,811 | $3,688,363 | $7,631,874 | $8,590,168 | $5,196,920 | $3,710,118 | $5,284,259 |
| Aluminum and articles thereof | $41,774,905 | $50,078,020 | $77,707,502 | $242,675,007 | $185,685,986 | $241,849,035 | $254,822,426 |
| Lead and articles thereof | $4,301,232 | $2,866,824 | $4,641,073 | $23,731,237 | $25,310,108 | $17,034,480 | $15,904,630 |
| Zinc and articles thereof | $22,906,138 | $28,969,373 | $57,857,838 | $63,311,574 | $30,139,474 | $49,132,811 | $38,047,389 |
| Tin and articles thereof | $2,838,186 | $1,524,613 | $930,123 | $4,592,364 | $4,268,994 | $8,337,234 | $5,420,059 |
| Other base metals; cermets; articles thereof | $2,077,948 | $682,399 | $1,178,862 | $11,327,606 | $2,678,904 | $4,393,683 | $4,769,518 |
| Tools, implements, cutlery, spoons and forks, of base metal | $43,241,821 | $43,655,875 | $51,377,608 | $105,574,409 | $119,882,182 | $137,023,873 | $109,416,576 |
| Miscellaneous articles of base metal | $57,218,431 | $55,809,425 | $81,607,580 | $163,557,417 | $153,906,697 | $173,903,954 | $153,643,525 |
| Total | $1,874,702,164 | $1,717,724,826 | $2,208,152,313 | $9,148,798,438 | $6,801,563,309 | $6,578,774,157 | $7,233,947,490 |
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