0... | Agriculture, Forestry, Fisheries |
1... | Mining and Construction |
2... | Manufacturing |
4... | Transportation, Communications and Other Public Utilities |
5... | Wholesale and Retail Trade |
6... | Finance, Insurance and Real Estate |
7... | Services |
9... | Public Administration, Government, Law, Justice, Security |
9999 | Nonclassifiable Establishments |
???? | Unclassified Establishments |