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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $631,369,000 | $843,641,200 | $1,153,155,000 | $1,730,870,700 | $802,531,700 | $1,398,945,000 | $1,655,574,600 |
| Articles of iron or steel | $417,622,600 | $547,576,700 | $753,967,000 | $1,136,134,000 | $683,750,800 | $934,043,500 | $1,024,459,400 |
| Copper and articles thereof | $107,095,500 | $222,259,700 | $267,534,200 | $281,868,200 | $136,261,900 | $245,527,700 | $328,036,200 |
| Nickel and articles thereof | $7,627,800 | $6,361,000 | $15,031,900 | $10,756,800 | $3,468,300 | $9,237,700 | $14,284,200 |
| Aluminum and articles thereof | $122,247,000 | $186,202,200 | $235,769,000 | $277,224,900 | $170,855,800 | $233,320,300 | $287,245,600 |
| Lead and articles thereof | $1,661,200 | $2,009,200 | $3,005,700 | $3,936,700 | $1,598,200 | $1,641,200 | $2,831,900 |
| Zinc and articles thereof | $2,264,200 | $6,245,500 | $16,673,700 | $12,115,100 | $8,157,800 | $12,799,100 | $13,650,400 |
| Tin and articles thereof | $2,106,900 | $1,870,900 | $3,412,100 | $5,342,400 | $5,325,900 | $6,680,400 | $6,237,000 |
| Other base metals; cermets; articles thereof | $2,574,500 | $4,723,300 | $6,212,500 | $8,288,900 | $5,476,900 | $5,888,200 | $10,020,600 |
| Tools, implements, cutlery, spoons and forks, of base metal | $41,274,700 | $60,133,100 | $77,605,200 | $107,368,700 | $74,164,300 | $111,069,600 | $121,320,600 |
| Miscellaneous articles of base metal | $59,288,900 | $85,016,000 | $112,840,400 | $156,967,400 | $109,535,900 | $138,889,200 | $143,492,000 |
| Total | $1,395,132,300 | $1,966,038,800 | $2,645,206,700 | $3,730,873,800 | $2,001,127,500 | $3,098,041,900 | $3,607,152,500 |
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