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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Rails of iron/steel | $6,563,974 | $11,204,927 | $28,964,007 | $52,097,106 | $31,599,099 | $28,814,075 | $53,504,267 |
| Switch blades, crossing frogs, point rods & oth. crossing pieces of iron/st ... | $937,694 | $1,221,984 | $907,294 | $1,419,692 | $633,880 | $1,123,154 | $2,790,371 |
| Fish-plates & sole plates (base plates) of iron/steel | $334,991 | $1,362,782 | $4,431,707 | $5,464,672 | $1,628,431 | $1,560,184 | $3,258,290 |
| Railway/tramway track construction mat.of iron/steel...: check-rails & rack ... | $902,007 | $2,776,504 | $5,487,611 | $3,881,037 | $2,408,911 | $7,125,773 | $10,260,317 |
| Total | $8,738,666 | $16,566,197 | $39,790,619 | $62,862,507 | $36,270,321 | $38,623,186 | $69,813,245 |
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