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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical signalling/safety/traffic control equip. for railways/tramways | $3,232,144 | $5,741,090 | $5,651,154 | $7,173,226 | $8,543,770 | $7,943,873 | $8,358,686 |
| Electrical signalling/safety/traffic control equip. other than for railways ... | $10,323,399 | $8,252,892 | $12,563,933 | $10,127,968 | $9,058,684 | $5,302,297 | $4,782,563 |
| Parts of the electrical signalling/safety/traffic control equip. of 85.30 | $41,109,472 | $28,385,495 | $41,775,665 | $44,737,253 | $33,536,837 | $30,663,067 | $40,652,434 |
| Total | $54,665,015 | $42,379,477 | $59,990,752 | $62,038,447 | $51,139,291 | $43,909,237 | $53,793,683 |
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