| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 2025/1 | 197,046 | +17.1% |
| 2024/1 | 168,296 | +32.8% |
| 2023/1 | 126,747 | +163.6% |
| 2022/1 | 48,086 | -46.2% |
| 2021/1 | 89,361 | -79.0% |
| 2020/1 | 425,391 | +15.1% |
| 2019/1 | 369,429 | -15.1% |
| 2018/1 | 435,042 | -1.5% |
| 2017/1 | 441,508 | +14.4% |
| 2016/1 | 385,982 | -12.5% |
| 2015/1 | 441,186 | +67.3% |
| 2014/1 | 263,767 | -28.1% |
| 2013/1 | 366,716 | -17.9% |
| 2012/1 | 446,717 | - |