| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 4Q22 | 4,000 | -97.7% |
| 3Q22 | 23,000 | -83.3% |
| 2Q22 | 36,000 | -94.6% |
| 1Q22 | 311,000 | -25.6% |
| 4Q21 | 174,000 | +91.2% |
| 3Q21 | 138,000 | - |
| 2Q21 | 672,000 | - |
| 1Q21 | 418,000 | -24.0% |
| 4Q20 | 91,000 | -80.4% |
| 3Q20 | 0 | -100.0% |
| 2Q20 | 0 | - |
| 1Q20 | 550,000 | +450.0% |
| 4Q19 | 465,000 | +78.2% |
| 3Q19 | 706,000 | +41.2% |
| 2Q19 | 0 | -100.0% |
| 1Q19 | 100,000 | -38.7% |
| 4Q18 | 261,000 | +335.0% |
| 3Q18 | 500,000 | +84.5% |
| 2Q18 | 216,000 | +213.0% |
| 1Q18 | 163,000 | +219.6% |
| 4Q17 | 60,000 | +81.8% |
| 3Q17 | 271,000 | +442.0% |
| 2Q17 | 69,000 | -42.5% |
| 1Q17 | 51,000 | -91.1% |
| 4Q16 | 33,000 | -86.8% |
| 3Q16 | 50,000 | -63.2% |
| 2Q16 | 120,000 | -68.2% |
| 1Q16 | 575,000 | +319.7% |
| 4Q15 | 250,000 | +284.6% |
| 3Q15 | 136,000 | -22.3% |
| 2Q15 | 377,000 | +3327.3% |
| 1Q15 | 137,000 | -67.3% |
| 4Q14 | 65,000 | -29.3% |
| 3Q14 | 175,000 | - |
| 2Q14 | 11,000 | - |
| 1Q14 | 419,000 | - |
| 4Q13 | 92,000 | +268.0% |
| 3Q13 | 0 | -100.0% |
| 4Q12 | 25,000 | -69.9% |
| 3Q12 | 35,000 | -79.8% |
| 2Q12 | 188,000 | +2.7% |
| 1Q12 | 8,000 | -95.8% |
| 4Q11 | 83,000 | - |
| 3Q11 | 173,000 | +119.0% |
| 2Q11 | 183,000 | +48.8% |
| 1Q11 | 190,000 | +387.2% |
| 4Q10 | 0 | - |
| 3Q10 | 79,000 | - |
| 2Q10 | 123,000 | - |
| 1Q10 | 39,000 | - |