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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Rails of iron/steel | $7,120,452 | $10,908,570 | $17,869,615 | $16,708,079 | $12,807,553 | $13,926,315 | $17,787,101 |
| Switch blades, crossing frogs, point rods & oth. crossing pieces of iron/st ... | $2,537,200 | $1,963,697 | $7,735,703 | $14,044,117 | $6,165,470 | $8,089,305 | $11,693,442 |
| Fish-plates & sole plates (base plates) of iron/steel | $58,011 | $75,506 | $125,183 | $54,046 | $67,562 | $202,654 | $1,096,304 |
| Railway/tramway track construction mat.of iron/steel...: check-rails & rack ... | $633,429 | $469,603 | $4,261,126 | $1,187,165 | $3,164,887 | $2,250,764 | $1,881,140 |
| Total | $10,349,092 | $13,417,376 | $29,991,627 | $31,993,407 | $22,205,472 | $24,469,038 | $32,457,987 |
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