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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical signalling/safety/traffic control equip. for railways/tramways | $3,063,464 | $2,270,922 | $8,052,072 | $3,305,042 | $9,935,279 | $24,821,846 | $5,973,388 |
| Electrical signalling/safety/traffic control equip. other than for railways ... | $8,116,606 | $9,865,812 | $17,735,450 | $10,078,124 | $13,298,917 | $6,677,358 | $12,629,887 |
| Parts of the electrical signalling/safety/traffic control equip. of 85.30 | $9,231,669 | $12,837,169 | $10,288,535 | $9,242,656 | $9,402,168 | $7,737,531 | $15,921,298 |
| Total | $20,411,739 | $24,973,903 | $36,076,057 | $22,625,822 | $32,636,364 | $39,236,735 | $34,524,573 |
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