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.
这里主要讲述季节变动的移动平均比率法，其它成分调用统计程序包进行计算。
Here we mainly talk about moving average proportion method of season change, other compositions call statistic program packages.
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