Commodity2005200620072008200920102011
Telephonic/telegraphic switching app.$40,050,522$47,586,163$674,132,068$818,457,691$699,943,117$864,971,346$976,359,243
Parts of the app. & equip. of 85.17$137,154,961$165,669,831$231,605,414$261,100,729$226,224,872$230,834,103$314,997,179
Total$177,205,483$213,255,994$905,737,482$1,079,558,420$926,167,989$1,095,805,449$1,291,356,422