Data provided by BEA based on IMF International Financial Statistics (IFS). Unadjusted flow is calculated as the amount of SDR allocations (in SDRs ) multiplied by the U.S. dollars per SDR exchange rate for the date of the allocation. Level is calculated as the amount of SDRs outstanding (in SDRs ) multiplied by the end of quarter U.S. dollars per SDR exchange rate. Capital gains reflect the change in the exchange rate. Data for the most recent ten years show no significant seasonality.