| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 4Q22 | 0 | - |
| 1Q22 | 75,000 | +5257.1% |
| 4Q21 | 0 | -100.0% |
| 3Q21 | 22,100 | - |
| 2Q21 | 1,500 | - |
| 1Q21 | 1,400 | - |
| 4Q20 | 1,400 | +1300.0% |
| 4Q19 | 100 | -75.0% |
| 3Q19 | 0 | -100.0% |
| 2Q19 | 100 | -99.8% |
| 1Q19 | 700 | -30.0% |
| 4Q18 | 400 | -78.9% |
| 3Q18 | 50,200 | - |
| 2Q18 | 50,100 | +50000.0% |
| 1Q18 | 1,000 | +100.0% |
| 4Q17 | 1,900 | +216.7% |
| 3Q17 | 0 | -100.0% |
| 2Q17 | 100 | - |
| 1Q17 | 500 | -37.5% |
| 4Q16 | 600 | 0.0% |
| 3Q16 | 300 | - |
| 2Q16 | 0 | - |
| 1Q16 | 800 | -11.1% |
| 4Q15 | 600 | -98.8% |
| 3Q15 | 0 | -100.0% |
| 2Q15 | 0 | -100.0% |
| 1Q15 | 900 | -94.7% |
| 4Q14 | 50,600 | -33.2% |
| 3Q14 | 10,300 | -89.7% |
| 2Q14 | 14,500 | -85.5% |
| 1Q14 | 16,900 | -83.7% |
| 4Q13 | 75,700 | -24.8% |
| 3Q13 | 100,000 | +295.3% |
| 2Q13 | 100,100 | +302.0% |
| 1Q13 | 103,600 | +91.5% |
| 4Q12 | 100,700 | +10.9% |
| 3Q12 | 25,300 | -87.8% |
| 2Q12 | 24,900 | -68.4% |
| 1Q12 | 54,100 | +4.0% |
| 4Q11 | 90,800 | +184.6% |
| 3Q11 | 207,000 | +4948.8% |
| 2Q11 | 78,800 | - |
| 1Q11 | 52,000 | - |
| 4Q10 | 31,900 | - |
| 3Q10 | 4,100 | - |