United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Mining, Quarrying, and Oil and Gas Extraction: Coal Mining (NAICS = 2121) was 0.50% in February of 2024, according to the United States Federal Reserve. Historically, United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Mining, Quarrying, and Oil and Gas Extraction: Coal Mining (NAICS = 2121) reached a record high of 1.85 in June of 1975 and a record low of 0.39 in June of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Mining, Quarrying, and Oil and Gas Extraction: Coal Mining (NAICS = 2121) - last updated from the United States Federal Reserve on April of 2024.