Commodity20052006200720082010
Telephonic/telegraphic switching app.$776,691$19,288,925$8,529,644$661,578$15,162,726
Parts of the app. & equip. of 85.17$1,409,082$8,145,328$9,816,667$10,907,520$9,062,782
Total$2,185,773$27,434,253$18,346,311$11,569,098$24,225,508