United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Manufacturing: Durable Goods: Primary Metal (NAICS = 331) was 2.82% in March of 2024, according to the United States Federal Reserve. Historically, United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Manufacturing: Durable Goods: Primary Metal (NAICS = 331) reached a record high of 6.81 in June of 1974 and a record low of 1.58 in June of 2009. 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): Manufacturing: Durable Goods: Primary Metal (NAICS = 331) - last updated from the United States Federal Reserve on May of 2024.