United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Stage-of-Process: Primary & Semifinished Processing was 46.14% in March of 2024, according to the United States Federal Reserve. Historically, United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Stage-of-Process: Primary & Semifinished Processing reached a record high of 51.94 in June of 1973 and a record low of 39.92 in June of 2014. 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): Stage-of-Process: Primary & Semifinished Processing - last updated from the United States Federal Reserve on April of 2024.