United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Energy Materials: Converted Fuel was 5.43% in March of 2024, according to the United States Federal Reserve. Historically, United States - Relative Importance Weights (Contribution to the Total Industrial Production Index): Energy Materials: Converted Fuel reached a record high of 6.40 in December of 1983 and a record low of 3.49 in January of 1998. 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): Energy Materials: Converted Fuel - last updated from the United States Federal Reserve on April of 2024.