United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Manufacturing: Durable Goods: Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment (NAICS = 3334) was 0.71% 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: Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment (NAICS = 3334) reached a record high of 1.15 in December of 1972 and a record low of 0.52 in November of 2011. 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: Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment (NAICS = 3334) - last updated from the United States Federal Reserve on April of 2024.