Commodity2005200620072008200920102011
Electrical signalling/safety/traffic control equip. for railways/tramways$9,092,086$22,032,712$20,273,358$28,159,346$17,817,829$19,484,919$18,649,039
Electrical signalling/safety/traffic control equip. other than for railways ...$22,971,863$55,955,325$42,201,518$34,433,047$30,775,318$31,633,171$32,068,128
Parts of the electrical signalling/safety/traffic control equip. of 85.30$42,679,623$47,039,802$49,398,946$40,719,122$30,094,045$39,754,047$48,273,943
Total$74,743,572$125,027,839$111,873,822$103,311,515$78,687,192$90,872,137$98,991,110