| （単位：千ドル） | 研究開発費 | 前年比（％） |
|---|---|---|
| 4Q23 | 5,900 | +25.5% |
| 3Q23 | 5,300 | -13.1% |
| 2Q23 | 5,200 | -36.6% |
| 1Q23 | 6,200 | -18.4% |
| 4Q22 | 4,700 | -174.6% |
| 3Q22 | 6,100 | -53.4% |
| 2Q22 | 8,200 | -34.4% |
| 1Q22 | 7,600 | -27.6% |
| 4Q21 | -6,300 | -152.1% |
| 3Q21 | 13,100 | +35.1% |
| 2Q21 | 12,500 | +23.8% |
| 1Q21 | 10,500 | +6.1% |
| 4Q20 | 12,100 | +12.0% |
| 3Q20 | 9,700 | -7.6% |
| 2Q20 | 10,100 | -9.8% |
| 1Q20 | 9,900 | -10.8% |
| 4Q19 | 10,800 | +50.0% |
| 3Q19 | 10,500 | +52.2% |
| 2Q19 | 11,200 | - |
| 1Q19 | 11,100 | - |
| 4Q18 | 7,200 | - |
| 3Q18 | 6,900 | - |