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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $3,008,375,957 | $4,303,080,373 | $5,490,741,616 | $5,187,334,204 | $2,130,851,935 | $3,849,407,316 | $4,620,874,976 |
| Articles of iron or steel | $1,244,189,729 | $1,402,371,092 | $1,704,105,232 | $1,805,412,658 | $921,692,013 | $1,923,721,975 | $2,401,328,845 |
| Copper and articles thereof | $844,848,929 | $1,439,532,644 | $1,179,235,387 | $1,499,598,620 | $862,451,057 | $1,404,738,882 | $1,471,084,922 |
| Nickel and articles thereof | $450,118,786 | $926,801,535 | $1,656,570,268 | $899,398,337 | $509,541,787 | $692,807,384 | $1,008,156,024 |
| Aluminum and articles thereof | $228,452,348 | $289,047,762 | $347,821,580 | $369,976,514 | $250,044,501 | $292,373,346 | $341,753,632 |
| Lead and articles thereof | $2,584,927 | $1,858,908 | $2,545,037 | $1,329,103 | $899,730 | $1,017,087 | $1,833,257 |
| Zinc and articles thereof | $354,842,823 | $815,208,470 | $969,074,892 | $557,410,003 | $479,724,024 | $628,837,767 | $647,495,903 |
| Tin and articles thereof | $946,567 | $1,679,762 | $3,221,416 | $3,589,911 | $1,593,438 | $2,851,942 | $3,960,315 |
| Other base metals; cermets; articles thereof | $2,690,410 | $3,522,678 | $4,151,438 | $7,988,613 | $7,528,345 | $13,831,709 | $25,486,920 |
| Tools, implements, cutlery, spoons and forks, of base metal | $91,042,366 | $99,044,450 | $117,208,308 | $123,560,799 | $106,378,077 | $124,766,054 | $140,867,693 |
| Miscellaneous articles of base metal | $118,233,383 | $137,482,847 | $164,497,267 | $174,095,836 | $142,877,211 | $153,673,093 | $161,804,693 |
| Total | $6,346,326,225 | $9,419,630,521 | $11,639,172,441 | $10,629,694,598 | $5,413,582,118 | $9,088,026,555 | $10,824,647,180 |
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