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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Electrical signalling/safety/traffic control equip. for railways/tramways | $239,339 | $3,111,208 | $2,692,710 | $1,793,919 | $8,254,169 | $413,409 | $645,223 |
| Electrical signalling/safety/traffic control equip. other than for railways ... | $2,441,419 | $1,975,820 | $1,699,115 | $2,759,154 | $2,905,608 | $3,198,682 | $1,461,518 |
| Parts of the electrical signalling/safety/traffic control equip. of 85.30 | $3,451,595 | $4,460,821 | $6,032,336 | $20,062,292 | $17,225,755 | $15,204,081 | $15,633,322 |
| Total | $6,132,353 | $9,547,849 | $10,424,161 | $24,615,365 | $28,385,532 | $18,816,172 | $17,740,063 |
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