月份

12~2

3~5

6~8

9~11

绝对值平均偏差

6.92%

4.68%

3.09%

5.17%

平均偏差

0.67%

0.42%

0.16%

0.17%

最大正误差

15.06%

11.41%

7.81%

11.32%

最大负误差

−10.01%

−8.82%

−4.61%

−8.38%

误差标准差

8.34%

5.93%

3.88%

6.35%