T - General Technology 1,766
TK - Electrical and Nuclear Engineering 1,545
TA - General and Civil Engineering 1,495
TP - Chemical Technology 1,260
TX - Home Economics 711
TD - Environmental Technology 655
TJ - Mechanical Engineering and Machinery 635
TS - Manufactures 597
TH - Building Construction 425
TR - Photography 293
TN - Mining Engineering and Metallurgy 263
TL - Motor Vehicles and Aeronautics 254
TT - Arts and Crafts 116
TC - Hydraulic and Ocean Engineering 110
TE - Highway Engineering 36
TF - Railroad Engineering and Operation 30
TG - Bridge Engineering 25