为了避免每月天气和其他临时因素造成的波动，数值应用了随季节调整的三个月移动平均年比率。
To avoid monthly gyrations caused by weather or other temporary factors, the figures use three-month moving averages of seasonally adjusted annual rates.
假日会给该数据的季节性因素调整加大了难度。许多经济学家转而关注四周移动平均值数据，它抹去了每周的波动因素。
Holidays make it tricky to seasonally adjust claims. Many economists instead focus on the four-week moving average, which irons out weekly fluctuations.
方法 用季节预测法中的移动平均比率法计算趋势值与调整月指数 ，最后应用模型。
Methods The trend values were calculated and the monthly indexes were adjusted with moving average method of season prediction method, and then the model was applied.
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