United States - Contributions for government social insurance: Employee and self-employed contributions: Federal social insurance funds: Supplementary medical insurance was 136.05000 Bil. of $ in January of 2022, according to the United States Federal Reserve. Historically, United States - Contributions for government social insurance: Employee and self-employed contributions: Federal social insurance funds: Supplementary medical insurance reached a record high of 136.05000 in January of 2022 and a record low of 0.32000 in January of 1966. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Contributions for government social insurance: Employee and self-employed contributions: Federal social insurance funds: Supplementary medical insurance - last updated from the United States Federal Reserve on April of 2024.