| 年份 | 留存收益(亿元) | 变化比例(%) |
| 2016 | 79.01 | — |
| 2017 | 97.93 | 23.95% |
| 2018 | 126.23 | 28.90% |
| 2019 | 164.65 | 30.44% |
| 2020 | 197.27 | 19.81% |
| 2021 | 244.38 | 23.88% |