| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 1Q21 | -26,688 | +6.6% |
| 4Q20 | -10,184 | -135.7% |
| 3Q20 | 76 | -99.8% |
| 2Q20 | -10,346 | -130.8% |
| 1Q20 | -25,037 | -265.2% |
| 4Q19 | 28,514 | +78.9% |
| 3Q19 | 36,066 | +65.1% |
| 2Q19 | 33,554 | +2.3% |
| 1Q19 | 15,156 | -71.4% |
| 4Q18 | 15,938 | -72.7% |
| 3Q18 | 21,843 | -62.2% |
| 2Q18 | 32,789 | -44.5% |
| 1Q18 | 52,904 | -21.3% |
| 4Q17 | 58,369 | -54.7% |
| 3Q17 | 57,710 | -51.4% |
| 2Q17 | 59,118 | -41.0% |
| 1Q17 | 67,247 | -28.9% |
| 4Q16 | 128,970 | +43.9% |
| 3Q16 | 118,814 | +72.0% |
| 2Q16 | 100,257 | +115.6% |
| 1Q16 | 94,636 | +93.5% |
| 4Q15 | 89,655 | +24.6% |
| 3Q15 | 69,088 | -9.3% |
| 2Q15 | 46,494 | -59.5% |
| 1Q15 | 48,904 | -65.1% |
| 4Q14 | 71,977 | -46.4% |
| 3Q14 | 76,148 | -23.0% |
| 2Q14 | 114,918 | +77.4% |
| 1Q14 | 140,180 | - |
| 4Q13 | 134,392 | - |
| 3Q13 | 98,899 | - |
| 2Q13 | 64,784 | - |