382 - International commerce 61
380 - Commerce, communications & transportation 48
384 - Communications; telecommunication 16
381 - Commerce 10
388 - Transportation; ground transportation 6
387 - Water, air & space transportation 3
383 - Postal communication 1
385 - Railroad transportation 1
386 - Inland waterway & ferry transportation 1
389 - Metrology & standardization 1