| 年份 | 2017 | 2018 | 2019 | 2020 | 2021 |
| 短期借款 | 130,800 | 216,600 | 218,200 | 103,000 | 91,160 |
| 短期借款权重 | 50.89% | 62.86% | 68.94% | 56.33% | 37.26% |
| 短期借款利率 | 4.35% | 4.35% | 4.35% | 4.35% | 4.35% |
| 长期借款 | 126,200 | 128,000 | 98,310 | 79,860 | 153,500 |
| 长期借款权重 | 49.11% | 37.14% | 31.06% | 43.67% | 62.74% |
| 长期借款利率 | 4.75% | 4.75% | 4.75% | 4.75% | 4.75% |
| 税前债务资本成本 | 4.55% | 4.50% | 4.47% | 4.52% | 4.60% |
| 所得税税率 | 25% | 25% | 25% | 25% | 25% |
| 税后债务资本成本 | 3.41% | 3.37% | 3.36% | 3.40% | 3.45% |