| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 2025/5 | 52,793 | -2.1% |
| 2024/5 | 53,908 | -77.1% |
| 2023/5 | 235,036 | -64.5% |
| 2022/5 | 662,125 | +843.5% |
| 2021/5 | 70,178 | -87.3% |
| 2020/5 | 552,467 | -15.9% |
| 2019/5 | 656,936 | +4.5% |
| 2018/5 | 628,401 | +109.2% |
| 2017/5 | 300,406 | -39.2% |
| 2016/5 | 494,165 | -10.0% |
| 2015/5 | 549,126 | +17.9% |
| 2014/5 | 465,884 | +30.9% |
| 2013/5 | 355,943 | +63.5% |
| 2012/5 | 217,763 | +12.2% |
| 2011/5 | 194,087 | - |