| （単位：千ドル） | 有利子負債合計 | 前年比（％） |
|---|---|---|
| 4Q21 | 39,695 | -7.8% |
| 3Q21 | 31,554 | -28.4% |
| 2Q21 | 33,175 | -24.5% |
| 1Q21 | 35,061 | -19.2% |
| 4Q20 | 43,049 | -0.6% |
| 3Q20 | 44,074 | +1.9% |
| 2Q20 | 43,935 | +3.9% |
| 1Q20 | 43,407 | +18.8% |
| 4Q19 | 43,293 | +61.8% |
| 3Q19 | 43,258 | +10.1% |
| 2Q19 | 42,283 | +22.4% |
| 1Q19 | 36,542 | -14.0% |
| 4Q18 | 26,755 | -0.6% |
| 3Q18 | 39,272 | +13.6% |
| 2Q18 | 34,542 | +47.0% |
| 1Q18 | 42,489 | +29.7% |
| 4Q17 | 26,914 | +3.6% |
| 3Q17 | 34,576 | - |
| 2Q17 | 23,500 | - |
| 1Q17 | 32,761 | - |
| 4Q16 | 25,983 | - |