Annual unadjusted flow from BEA NIPA Table 7.11. Series is calculated as line 1, Monetary interest paid; plus line 43, Depositor and insurance services: Imputed interest paid; plus line 70, Borrower services: Inputed interest paid; less line 22, Monetary interest paid, Rest of the world; less line 48, Depositor and insurance services: Imputed interest paid, Rest of the world; less line 88, Borrower services: Inputed interest paid, Rest of the world. Series is converted to quarterly by dividing the annual unadjusted flow by 4 and applying it to each four quarters. Data for the most recent ten years show no significant seasonality. Series has no levels.