| 2022 | 2021 | 2020 | 2019 |
销售净利率(%) | 12.18 | 12.15 | 13.25 | 12.53 |
销售毛利率(%) | 26.04 | 24.28 | 26.14 | 27.58 |
净资产收益率(%) | 24.19 | 21.34 | 18.18 | 25.72 |