Response Options:Crop production (111) , Animal production and aquaculture (112) , Forestry except logging (1131, 1132) , Logging (1133) , Fishing, hunting and trapping (114) , Support activities for agriculture and forestry (115) , Oil and gas extraction (211) , Coal mining (2121) , Metal ore mining (2122) , Nonmetallic mineral mining and quarrying (2123) , Not specified type of mining (Part of 21) , Support activities for mining (213) , Electric power generation, transmission and distribution (2211) , Natural gas distribution (2212) , Electric and gas, and other combinations (Pts. 2211, 2212) , Water, steam, air-conditioning, and irrigation systems (22131, 22133) , Sewage treatment facilities (22132) , Not specified utilities (Part of 22) , Construction (the cleaning of buildings and dwellings is incidental during construction and immediately after constructi , Animal food, grain and oilseed milling (3111, 3112)