United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Manufacturing (NAICS) was 74.52% 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 (NAICS) reached a record high of 83.64 in March of 1973 and a record low of 66.77 in May 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): Manufacturing (NAICS) - last updated from the United States Federal Reserve on May of 2024.