Commodity2005200620072008200920102011
Telephonic/telegraphic switching app.$4,562,920$3,524,507$97,575,047$75,367,374$68,129,058$117,311,155$239,591,859
Parts of the app. & equip. of 85.17$50,917,882$77,708,275$184,533,580$204,030,158$182,225,392$152,048,836$162,117,671
Total$55,480,802$81,232,782$282,108,627$279,397,532$250,354,450$269,359,991$401,709,530