| （単位：千ドル） | 売上原価 | 前年比（％） |
|---|---|---|
| 3Q21 | 2,081 | -2.4% |
| 2Q21 | 2,185 | -0.1% |
| 1Q21 | 2,240 | +4.9% |
| 4Q20 | 2,381 | -2.3% |
| 3Q20 | 2,132 | -0.6% |
| 2Q20 | 2,188 | +1.3% |
| 1Q20 | 2,136 | +9.8% |
| 4Q19 | 2,436 | +8.6% |
| 3Q19 | 2,144 | -9.0% |
| 2Q19 | 2,160 | -25.3% |
| 1Q19 | 1,945 | -31.9% |
| 4Q18 | 2,244 | -25.2% |
| 3Q18 | 2,357 | -8.3% |
| 2Q18 | 2,891 | +84.8% |
| 1Q18 | 2,857 | +84.9% |
| 4Q17 | 3,002 | - |
| 3Q17 | 2,569 | - |
| 2Q17 | 1,564 | - |
| 1Q17 | 1,545 | - |