

| Code | 1987 U.S. SIC Description |
|---|---|
| 01 | Agricultural production- crops |
| 02 | Agricultural production- livestock |
| 07 | Agricultural services |
| 08 | Forestry |
| 09 | Fishing, hunting, and trapping |
| Code | 1987 U.S. SIC Description |
|---|---|
| 10 | Metal mining |
| 12 | Coal mining |
| 13 | Oil and gas extraction |
| 14 | Nonmetallic minerals, except fuels |
| Code | 1987 U.S. SIC Description |
|---|---|
| 15 | General building contractors |
| 16 | Heavy construction contractors |
| 17 | Special trade contractors |
Transportation, Communication, and Utilities
| Code | 1987 U.S. SIC Description |
|---|---|
| 50 | Wholesale trade--durable goods |
| 51 | Wholesale trade--nondurable goods |
Finance, Insurance, and Real Estate