| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 4Q20 | -143,459 | +153.3% |
| 3Q20 | -136,176 | +35.7% |
| 2Q20 | -93,827 | +9.3% |
| 1Q20 | -58,732 | +4.1% |
| 4Q19 | -56,629 | -28.4% |
| 3Q19 | -100,323 | +78.4% |
| 2Q19 | -85,851 | +132.3% |
| 1Q19 | -56,442 | +110.6% |
| 4Q18 | -79,061 | +212.1% |
| 3Q18 | -56,243 | +345.0% |
| 2Q18 | -36,959 | -1076.7% |
| 1Q18 | -26,798 | -354.0% |
| 4Q17 | -25,329 | -81.1% |
| 3Q17 | -12,640 | -90.2% |
| 2Q17 | 3,784 | -103.0% |
| 1Q17 | 10,550 | -108.2% |
| 4Q16 | -133,934 | +10.1% |
| 3Q16 | -128,350 | +7.0% |
| 2Q16 | -127,464 | +798.7% |
| 1Q16 | -129,145 | - |
| 4Q15 | -121,658 | - |
| 3Q15 | -119,901 | - |
| 2Q15 | -14,183 | - |