10. Driver/Sales Workers and Truck Drivers
9. Refuse and Recycling Collectors
8. Roofers
7. Mining Machine Operators
6. Coal Miners
5. Farmers and Ranchers
4. Miscellaneous Extraction Workers
3. Pilots and Flight Engineers
2. Logging Workers
1. Fishing-Related Workers
I had the occupations listed originally, but apparently CNBC is an excerpt-only source.