Rm = 7.73%

Rm = 9.85%

年份

样本(家)

均值

中位数

均值

中位数

2012

179

8.10%

8.50%

10.42%

11.02%

2013

179

7.01%

7.19%

8.64%

8.95%

2014

179

6.29%

6.31%

7.66%

7.70%

2015

179

8.12%

8.37%

10.41%

10.77%

2016

180

9.98%

10.24%

13.12%

13.49%

2017

179

7.10%

6.97%

8.87%

8.67%

2018

178

8.11%

8.06%

10.41%

10.34%

2019

178

8.52%

8.30%

11.01%

10.68%

2020

179

8.59%

8.14%

11.11%

10.45%

2021

179

8.05%

4.55%

10.31%

5.32%

平均值

7.99%

7.99%

7.66%

10.20%