| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 2024/4 | 675,053 | +5.3% |
| 2023/4 | 641,030 | -6.6% |
| 2022/4 | 686,300 | -5.6% |
| 2021/4 | 727,229 | +27.1% |
| 2020/4 | 571,978 | +48.5% |
| 2019/4 | 385,242 | +102.5% |
| 2018/4 | 190,227 | -37.9% |
| 2017/4 | 306,484 | +27.1% |
| 2016/4 | 241,201 | +25.2% |
| 2015/4 | 192,649 | -9.9% |
| 2014/4 | 213,723 | -36.9% |
| 2013/4 | 338,860 | +57.5% |
| 2012/4 | 215,170 | -14.7% |
| 2011/4 | 252,347 | - |