Commodity2005200620072008200920102011
Telephonic/telegraphic switching app.$7,282,603$2,545,379$4,120,332$23,127,974$7,884,817$417,825,361$737,644,722
Parts of the app. & equip. of 85.17$57,312,387$75,484,350$189,018,194$922,749,087$454,587,709$949,578,088$1,206,951,837
Total$64,594,990$78,029,729$193,138,526$945,877,061$462,472,526$1,367,403,449$1,944,596,559