| （単位：千ドル） | 研究開発費 | 前年比（％） |
|---|---|---|
| 4Q25 | 21,800 | -21.6% |
| 3Q25 | 24,900 | -4.2% |
| 2Q25 | 22,000 | -25.2% |
| 1Q25 | 26,700 | -7.9% |
| 4Q24 | 27,800 | -6.1% |
| 3Q24 | 26,000 | -12.2% |
| 2Q24 | 29,400 | -8.7% |
| 1Q24 | 29,000 | -6.8% |
| 4Q23 | 29,600 | -9.2% |
| 3Q23 | 29,600 | -0.7% |
| 2Q23 | 32,200 | +2.2% |
| 1Q23 | 31,100 | +6.1% |
| 4Q22 | 32,600 | +7.6% |
| 3Q22 | 29,800 | +8.0% |
| 2Q22 | 31,500 | -4.5% |
| 1Q22 | 29,300 | -5.8% |
| 4Q21 | 30,300 | -34.3% |
| 3Q21 | 27,600 | -35.2% |
| 2Q21 | 33,000 | -29.9% |
| 1Q21 | 31,100 | -25.8% |
| 4Q20 | 46,100 | -22.4% |
| 3Q20 | 42,600 | -3.2% |
| 2Q20 | 47,100 | +7.3% |
| 1Q20 | 41,900 | +4.2% |
| 4Q19 | 59,400 | +33.2% |
| 3Q19 | 44,000 | +0.7% |
| 2Q19 | 43,900 | -52.2% |
| 1Q19 | 40,200 | +4.7% |
| 4Q18 | 44,600 | -4.9% |
| 3Q18 | 43,700 | +13.8% |
| 2Q18 | 91,900 | +115.7% |
| 1Q18 | 38,400 | -3.5% |
| 4Q17 | 46,900 | +13.0% |
| 3Q17 | 38,400 | -23.5% |
| 2Q17 | 42,600 | -9.4% |
| 1Q17 | 39,800 | -4.3% |
| 4Q16 | 41,500 | -33.7% |
| 3Q16 | 50,200 | +41.8% |
| 2Q16 | 47,000 | -11.7% |
| 1Q16 | 45,300 | +23.8% |
| 1Q16 | 41,600 | +13.7% |
| 4Q15 | 62,600 | +64.7% |
| 3Q15 | 35,400 | -20.8% |
| 2Q15 | 53,200 | +41.9% |
| 1Q15 | 36,600 | - |
| 4Q14 | 38,000 | - |
| 3Q14 | 44,700 | - |
| 2Q14 | 37,500 | - |