| （単位：千ドル） | 有利子負債合計 | 前年比（％） |
|---|---|---|
| 2025/1 | 412,753 | +0.4% |
| 2024/1 | 410,965 | +0.5% |
| 2023/1 | 408,908 | +0.5% |
| 2022/1 | 406,954 | -48.5% |
| 2021/1 | 789,494 | -5.7% |
| 2020/1 | 837,048 | +7.0% |
| 2019/1 | 782,128 | +1.2% |
| 2018/1 | 772,984 | +3.2% |
| 2017/1 | 748,871 | +1.5% |
| 2016/1 | 738,087 | +1.6% |
| 2015/1 | 726,258 | +13.1% |
| 2014/1 | 642,385 | +11.4% |
| 2013/1 | 576,689 | -3.5% |
| 2012/1 | 597,379 | - |