(1) ${\beta }_1$

(2) ${\beta }_2$

(3) ${\beta }_3$

(4) ${\beta }_4$

均值

4.2855

−1.2134

−0.679

−0.954

中位数

4.2827

−1.1378

−0.7565

−1.0233

最大值

5.4741

−0.0326

3.4151

3.9714

最小值

3.3451

−3.422

−2.9157

−3.611

标准差

0.5182

0.6371

0.9964

1.3936