a Net rate before allowing for the estimated offsetting effect of currency exchange rates on non-United States-denominated assets, which would appear as a change in assets. (Approximately 50 per cent of assets are affected by changes in currency exchange rates.
a 这是考虑到货币汇率对非美元计价资产的估计冲销影响之前的净缴款率（大约50％的资产受到货币汇率变化的影响）。