| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 1Q20 | 12,447 | -61.1% |
| 4Q19 | 12,553 | -69.2% |
| 3Q19 | 23,484 | -53.3% |
| 2Q19 | 27,438 | -34.0% |
| 1Q19 | 32,012 | -32.7% |
| 4Q18 | 40,791 | -16.7% |
| 3Q18 | 50,265 | +5.6% |
| 2Q18 | 41,562 | -12.8% |
| 1Q18 | 47,577 | +15.0% |
| 4Q17 | 48,980 | +23.8% |
| 3Q17 | 47,595 | +8.8% |
| 2Q17 | 47,680 | +15.5% |
| 1Q17 | 41,363 | +79.6% |
| 4Q16 | 39,555 | +63.3% |
| 3Q16 | 43,728 | +64.6% |
| 2Q16 | 41,290 | +86.9% |
| 1Q16 | 23,032 | -7.1% |
| 4Q15 | 24,216 | +121.7% |
| 3Q15 | 26,573 | +92.0% |
| 2Q15 | 22,093 | - |
| 1Q15 | 24,800 | -1287.2% |
| 4Q14 | 10,925 | -182183.3% |
| 3Q14 | 13,840 | +507.6% |
| 1Q14 | -2,089 | -132.6% |
| 4Q13 | -6 | - |
| 3Q13 | 2,278 | -157.8% |
| 2Q13 | 5,228 | - |
| 1Q13 | 6,407 | - |
| 3Q12 | -3,941 | - |