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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical signalling/safety/traffic control equip. for railways/tramways | $42,310,571 | $58,681,102 | $48,828,253 | $66,503,555 | $60,453,110 | $71,279,058 | $41,273,290 |
| Electrical signalling/safety/traffic control equip. other than for railways ... | $14,721,785 | $18,411,003 | $25,577,124 | $19,257,133 | $36,558,389 | $22,789,245 | $27,497,008 |
| Parts of the electrical signalling/safety/traffic control equip. of 85.30 | $13,660,708 | $47,070,035 | $34,787,384 | $46,179,182 | $41,078,004 | $31,341,650 | $44,551,154 |
| Total | $70,693,064 | $124,162,140 | $109,192,761 | $131,939,870 | $138,089,503 | $125,409,953 | $113,321,452 |
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