2021

2020

2019

2018

2017

2016

营业毛利率

23.75%

24.75%

30.24%

28.84%

26.26%

28.59%

营业利润率

9.75%

11.08%

10.67%

9.85%

8.98%

10.89%

总资产报酬率

9.03%

9.59%

10.63%

10.15%

10.56%

12.93%

净资产收益率

7.75%

8.31%

8.94%

8.46%

8.89%

10.59%