| （単位：千ドル） | 売掛金 | 前年比（％） |
|---|---|---|
| 3Q21 | 12 | -97.4% |
| 2Q21 | 12 | -98.7% |
| 1Q21 | 1,028 | +5.3% |
| 4Q20 | 1,541 | +219.7% |
| 3Q20 | 466 | -72.8% |
| 2Q20 | 923 | -47.0% |
| 1Q20 | 976 | -61.2% |
| 4Q19 | 482 | -75.9% |
| 3Q19 | 1,712 | -5.4% |
| 2Q19 | 1,740 | -30.7% |
| 1Q19 | 2,513 | +37.8% |
| 4Q18 | 1,997 | +74.9% |
| 3Q18 | 1,809 | -16.9% |
| 2Q18 | 2,511 | +9.0% |
| 1Q18 | 1,824 | -86.5% |
| 4Q17 | 1,142 | - |
| 3Q17 | 2,177 | - |
| 2Q17 | 2,303 | - |
| 1Q17 | 13,550 | - |