| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 4Q21 | 25,106 | +3082.0% |
| 3Q21 | -1,861 | -142.7% |
| 2Q21 | 5,369 | -64.2% |
| 1Q21 | -2,238 | -106.9% |
| 4Q20 | 789 | -97.7% |
| 3Q20 | 4,361 | -89.7% |
| 2Q20 | 14,993 | -63.6% |
| 1Q20 | 32,597 | -0.1% |
| 4Q19 | 34,836 | - |
| 3Q19 | 42,385 | - |
| 2Q19 | 41,159 | - |
| 1Q19 | 32,625 | - |
| 4Q17 | 26,288 | +41.5% |
| 3Q17 | 33,815 | - |
| 2Q17 | 22,815 | - |
| 1Q17 | 26,470 | - |
| 4Q16 | 18,577 | - |