Name: Hours Worked for Mining: Other Nonmetallic Mineral Mining and Quarrying (NAICS 21239) in the United States data
Creator: FRED
License: https://macrobymark.com/about/terms-of-use#data-providers

Hours Worked for Mining: Other Nonmetallic Mineral Mining and Quarrying (NAICS 21239) in the United States data | Macro by Mark