| (百万円) | 2014/03 | 2015/03 | 2016/03 | 2017/03 | 2018/03 | 2019/03 | 2020/03 | 2021/03 | 2022/03 | 2023/03 | 2024/03 |
| 長短借入債務 | 4,157,555 | 4,413,976 | 4,286,542 | 4,138,451 | 4,133,258 | 4,495,771 | 4,616,186 | 4,724,102 | 4,866,685 | 5,718,519 | 6,200,471 |
| D/Eレシオ | 2.2倍 | 2.1倍 | 1.9倍 | 1.7倍 | 1.5倍 | 1.6倍 | 1.5倍 | 1.6倍 | 1.5倍 | 1.6倍 | 1.6倍 |