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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Rails of iron/steel | $253,881 | $140,127 | $1,968,211 | $1,633,406 | $237,844 | $15,917,360 |
| Switch blades, crossing frogs, point rods & oth. crossing pieces of iron/st ... | $2,912 | $97,345 | $59,964 | $210,182 | $7,590 | $620,441 |
| Fish-plates & sole plates (base plates) of iron/steel | $37,492 | $185,137 | $17,559 | | $16,782 | $1,284 |
| Railway/tramway track construction mat.of iron/steel...: check-rails & rack ... | $145,355 | $871,004 | $279,004 | $2,546,504 | $430,394 | $6,906,263 |
| Total | $439,640 | $1,293,613 | $2,324,738 | $4,390,092 | $692,610 | $23,445,348 |
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