| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 2024/4 | 337,199 | +2.9% |
| 2023/4 | 327,562 | -5.5% |
| 2022/4 | 346,540 | -22.1% |
| 2021/4 | 445,051 | -12.7% |
| 2020/4 | 509,822 | -22.0% |
| 2019/4 | 653,670 | -30.1% |
| 2018/4 | 935,644 | +1.9% |
| 2017/4 | 918,067 | +1.9% |
| 2016/4 | 901,202 | +180.0% |
| 2015/4 | 321,910 | -23.2% |
| 2014/4 | 419,317 | +90.8% |
| 2013/4 | 219,772 | -20.4% |
| 2012/4 | 276,219 | +102.6% |
| 2011/4 | 136,335 | - |