NLRB Stats Archive › Annual Reports › FY1942 › Industries with preponderance of unfair labor practice cases
Industries with preponderance of unfair labor practice cases
| Industry | Unfair labor practice cases | Unfair labor practice cases | Representation cases | Representation cases |
|---|---|---|---|---|
| Industry | Number | Percent of total | Number | Percent of total |
| Retail trade | 219 | 51.3 | 208 | 48.7 |
| Aircraft and parts | 134 | 52.5 | 121 | 47.5 |
| Wholesale trade | 403 | 54.2 | 341 | 45.8 |
| Highway freight transportation | 114 | 56.2 | 89 | 43.8 |
| Rubber products | 46 | 56.8 | 35 | 43.2 |
| Construction | 49 | 57 | 37 | 43 |
| Apparel | 276 | 65.2 | 147 | 34.8 |
| Coal mining | 51 | 66.2 | 26 | 33.8 |
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Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.