TA - General and Civil Engineering 2,580
TK - Electrical and Nuclear Engineering 1,712
TJ - Mechanical Engineering and Machinery 910
TP - Chemical Technology 440
TS - Manufactures 394
T - General Technology 350
TH - Building Construction 348
TL - Motor Vehicles and Aeronautics 298
TX - Home Economics 227
TD - Environmental Technology 136
TN - Mining Engineering and Metallurgy 65
TC - Hydraulic and Ocean Engineering 52
TT - Arts and Crafts 36
TR - Photography 31
TE - Highway Engineering 21
TG - Bridge Engineering 12
TF - Railroad Engineering and Operation 4