| 年份 | 无风险收益率(Rf) | 市场风险溢价(Rm − Rf) | β系数 | 权益资本成本 |
| 2014 | 3.62% | 7.40% | 0.98 | 10.87% |
| 2015 | 2.82% | 7.00% | 0.98 | 9.68% |
| 2016 | 3.01% | 6.80% | 0.98 | 9.67% |
| 2017 | 3.88% | 6.90% | 0.98 | 10.64% |
| 2018 | 3.23% | 6.70% | 0.97 | 9.73% |
| 2019 | 3.14% | 6.00% | 0.96 | 8.90% |
| 2020 | 3.14% | 2.20% | 1.01 | 5.36% |
| 2021 | 2.78% | 8.10% | 0.99 | 10.80% |
| 2022 | 2.88% | 3.00% | 1 | 5.88% |