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| Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron and steel | $336,636,647 | $399,569,164 | $493,038,734 | $1,075,151,991 | $304,952,699 | $848,283,699 | $876,661,463 |
| Articles of iron or steel | $548,031,849 | $595,755,783 | $632,319,971 | $1,212,231,996 | $875,947,396 | $974,692,779 | $1,162,365,260 |
| Copper and articles thereof | $26,740,061 | $45,403,107 | $44,851,552 | $48,925,453 | $34,986,524 | $59,515,364 | $97,658,311 |
| Nickel and articles thereof | $4,666,534 | $5,654,518 | $10,573,115 | $12,383,717 | $4,096,970 | $4,296,331 | $5,557,511 |
| Aluminum and articles thereof | $171,893,621 | $227,179,648 | $262,335,365 | $308,965,786 | $243,907,950 | $309,465,381 | $345,767,217 |
| Lead and articles thereof | $8,987,928 | $5,456,130 | $11,957,077 | $6,325,389 | $13,424,961 | $4,017,628 | $11,350,245 |
| Zinc and articles thereof | $17,523,012 | $40,365,564 | $48,084,924 | $29,929,577 | $19,687,763 | $28,215,398 | $33,509,892 |
| Tin and articles thereof | $7,237,784 | $6,113,632 | $8,503,649 | $12,114,202 | $4,246,218 | $6,494,655 | $8,867,865 |
| Other base metals; cermets; articles thereof | $2,672,393 | $6,779,285 | $6,479,295 | $6,253,771 | $3,436,517 | $9,009,686 | $22,747,979 |
| Tools, implements, cutlery, spoons and forks, of base metal | $113,056,028 | $128,487,102 | $143,657,973 | $210,573,460 | $153,226,210 | $221,566,302 | $262,573,695 |
| Miscellaneous articles of base metal | $89,998,282 | $102,920,856 | $125,416,662 | $170,611,071 | $131,903,175 | $179,704,306 | $217,765,313 |
| Total | $1,327,444,139 | $1,563,684,789 | $1,787,218,317 | $3,093,466,413 | $1,789,816,383 | $2,645,261,529 | $3,044,824,751 |
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