| Characteristic | Underground | Surface |
|---|---|---|
| 2012 | 3,938 | 574 |
| 2014 | 3,772 | 446 |
| 2016 | 2,995 | 224 |
| 2018 | 2,729 | 350 |
| 2020 | 1,983 | 192 |
| 2022 | 2,063 | 99 |
| 2023 | 2,213 | 102 |
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Source
Sources
Release date
October 2024
More information
Region
United States (Illinois)
Survey time period
2012 to 2023
Supplementary notes
Includes all employees engaged in production, preparation, processing, development, maintenance, repair shop, or yard work at mining operations, including office workers. Excludes preparation plants with less than 5,000 employee hours per year, which are not required to provide data. This statistic was assembled using several editions of the report.
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