| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 2Q21 | 1,325 | -113.6% |
| 1Q21 | 525 | -94.9% |
| 4Q20 | 525 | -95.5% |
| 3Q20 | -1,665 | -115.2% |
| 2Q20 | -9,775 | -206.9% |
| 1Q20 | 10,331 | +30.8% |
| 4Q19 | 11,725 | +20.1% |
| 3Q19 | 10,932 | -30.6% |
| 2Q19 | 9,148 | -52.9% |
| 1Q19 | 7,896 | +61.2% |
| 4Q18 | 9,766 | +158.2% |
| 3Q18 | 15,762 | +53.7% |
| 2Q18 | 19,414 | +2.1% |
| 1Q18 | 4,898 | -72.2% |
| 4Q17 | 3,783 | -80.5% |
| 3Q17 | 10,256 | -68.5% |
| 2Q17 | 19,006 | +15.7% |
| 1Q17 | 17,589 | +27.7% |
| 4Q16 | 19,377 | +5.9% |
| 3Q16 | 32,532 | +175.7% |
| 2Q16 | 16,428 | - |
| 1Q16 | 13,771 | - |
| 4Q15 | 18,294 | - |
| 3Q15 | 11,800 | +104.9% |
| 3Q14 | 5,757 | +6.9% |
| 2Q14 | 3,632 | -14.0% |
| 1Q14 | 4,554 | +27.5% |
| 4Q13 | 1,239 | +178.7% |
| 3Q13 | 5,384 | - |
| 2Q13 | 4,223 | - |
| 1Q13 | 3,572 | - |
| 4Q12 | 444 | - |