Commodity2005200620072008200920102011
Telephonic/telegraphic switching app.$16,021,109$12,685,373$203,968,153$268,646,148$275,824,014$356,428,786$442,629,885
Parts of the app. & equip. of 85.17$66,120,745$88,785,357$113,717,561$118,466,521$99,210,293$123,609,912$157,183,702
Total$82,141,854$101,470,730$317,685,714$387,112,669$375,034,307$480,038,698$599,813,587