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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical signalling/safety/traffic control equip. for railways/tramways | $5,668,357 | $1,850,305 | $11,006 | $400,271 | $610,790 | $206,115 | $50,604 |
| Electrical signalling/safety/traffic control equip. other than for railways ... | $2,458,259 | $1,400,227 | $1,816,405 | $3,424,548 | $3,828,771 | $2,306,594 | $2,367,352 |
| Parts of the electrical signalling/safety/traffic control equip. of 85.30 | $3,327,858 | $4,356,445 | $4,761,591 | $5,088,041 | $5,594,000 | $4,071,786 | $1,043,896 |
| Total | $11,454,474 | $7,606,977 | $6,589,002 | $8,912,860 | $10,033,561 | $6,584,495 | $3,461,852 |
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