There is an intrinsic and necessary connection between the market profit rate and the macro - economy.
市盈率与 宏观 经济形势之间存在着内在的、必然的联系.
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The variation of profit rate decreases from 18.9 % to 16.1 % , variation range is smaller, less risk.
收益率的方差由18.9%下降为16.1%, 收益率的变化幅度减少,风险降低.
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