Commodity200520062007200820092011
Telephonic/telegraphic switching app.$735,914$218,669$23,552,957$29,935,396$24,745,750$23,422,349
Parts of the app. & equip. of 85.17$4,738,946$2,521,112$12,326,857$18,046,255$16,180,263$8,708,302
Total$5,474,860$2,739,781$35,879,814$47,981,651$40,926,013$32,130,651