| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 1Q20 | -235,336 | - |
| 4Q19 | -317,287 | -2.4% |
| 4Q18 | -324,927 | +124.0% |
| 4Q17 | -145,087 | -60.1% |
| 2Q17 | -175,391 | -55.2% |
| 1Q17 | -282,808 | -9.7% |
| 4Q16 | -363,976 | +75.2% |
| 3Q16 | -359,809 | +95.0% |
| 2Q16 | -391,561 | +169.1% |
| 1Q16 | -313,303 | +105.4% |
| 4Q15 | -207,768 | +40.2% |
| 3Q15 | -184,471 | +45.6% |
| 2Q15 | -145,526 | +41.9% |
| 1Q15 | -152,511 | +49.6% |
| 4Q14 | -148,166 | +25.7% |
| 3Q14 | -126,687 | +6.1% |
| 2Q14 | -102,584 | +10.8% |
| 1Q14 | -101,939 | -24.9% |
| 4Q13 | -117,868 | -36.1% |
| 3Q13 | -119,419 | -18.6% |
| 2Q13 | -92,611 | -21.8% |
| 1Q13 | -135,780 | +47.9% |
| 4Q12 | -184,531 | - |
| 3Q12 | -146,755 | - |
| 2Q12 | -118,471 | - |
| 1Q12 | -91,831 | - |