| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 1Q21 | 342 | -164.4% |
| 4Q20 | -669 | -290.1% |
| 1Q20 | -531 | -188.2% |
| 4Q19 | 352 | -42.4% |
| 3Q19 | 616 | -7800.0% |
| 2Q19 | 1,413 | +1688.6% |
| 1Q19 | 602 | +225.4% |
| 4Q18 | 611 | +196.6% |
| 3Q18 | -8 | -101.3% |
| 2Q18 | 79 | -88.2% |
| 1Q18 | 185 | -71.8% |
| 4Q17 | 206 | -96.7% |
| 3Q17 | 626 | -97.4% |
| 2Q17 | 668 | -97.4% |
| 1Q17 | 656 | -98.4% |
| 4Q16 | 6,255 | -84.2% |
| 3Q16 | 24,052 | -38.4% |
| 2Q16 | 25,626 | -49.3% |
| 1Q16 | 39,793 | -20.1% |
| 4Q15 | 39,478 | -20.7% |
| 3Q15 | 39,032 | -21.1% |
| 2Q15 | 50,539 | +4.0% |
| 1Q15 | 49,803 | -0.6% |
| 4Q14 | 49,761 | +2.3% |
| 3Q14 | 49,480 | -1.2% |
| 2Q14 | 48,573 | +0.9% |
| 1Q14 | 50,121 | -0.8% |
| 4Q13 | 48,641 | +0.4% |
| 3Q13 | 50,087 | +6.6% |
| 2Q13 | 48,138 | +5.2% |
| 1Q13 | 50,511 | +12.5% |
| 4Q12 | 48,439 | +8.5% |
| 3Q12 | 46,998 | - |
| 2Q12 | 45,755 | - |
| 1Q12 | 44,891 | - |
| 4Q11 | 44,631 | - |