United States - Gross National Product: Chain-type Price Index was 129.36200 Index 2009=100 in July of 2025, according to the United States Federal Reserve. Historically, United States - Gross National Product: Chain-type Price Index reached a record high of 129.36200 in July of 2025 and a record low of 11.12700 in January of 1947. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Gross National Product: Chain-type Price Index - last updated from the United States Federal Reserve on April of 2026.