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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical signalling/safety/traffic control equip. for railways/tramways | $238,371 | $221,316 | $769,155 | $327,779 | $2,858,019 | $5,180,452 | $3,998,548 |
| Electrical signalling/safety/traffic control equip. other than for railways ... | $6,974,885 | $2,939,128 | $5,392,602 | $3,466,191 | $8,495,350 | $8,703,288 | $7,291,542 |
| Parts of the electrical signalling/safety/traffic control equip. of 85.30 | $3,415,923 | $3,470,267 | $4,119,655 | $5,065,010 | $3,466,155 | $4,379,037 | $5,578,486 |
| Total | $10,629,179 | $6,630,711 | $10,281,412 | $8,858,980 | $14,819,524 | $18,262,777 | $16,868,576 |
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