| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 4Q22 | 0 | -100.0% |
| 3Q22 | 0 | -100.0% |
| 2Q22 | 0 | -100.0% |
| 1Q22 | 17,000 | -93.6% |
| 4Q21 | 197,000 | -47.9% |
| 3Q21 | 286,000 | +172.4% |
| 2Q21 | 250,000 | - |
| 1Q21 | 267,000 | +59.9% |
| 4Q20 | 378,000 | +62.2% |
| 3Q20 | 105,000 | -61.8% |
| 2Q20 | 0 | -100.0% |
| 1Q20 | 167,000 | -21.2% |
| 4Q19 | 233,000 | -58.0% |
| 3Q19 | 275,000 | +83.3% |
| 2Q19 | 276,000 | +176.0% |
| 1Q19 | 212,000 | - |
| 4Q18 | 555,000 | - |
| 3Q18 | 150,000 | -25.0% |
| 2Q18 | 100,000 | -41.9% |
| 1Q18 | 0 | -100.0% |
| 4Q17 | 0 | -100.0% |
| 3Q17 | 200,000 | +100.0% |
| 2Q17 | 172,000 | -14.0% |
| 1Q17 | 128,000 | - |
| 4Q16 | 200,000 | - |
| 3Q16 | 100,000 | -76.2% |
| 2Q16 | 200,000 | - |
| 1Q16 | 0 | - |
| 4Q15 | 0 | -100.0% |
| 3Q15 | 420,000 | +328.6% |
| 2Q15 | 0 | -100.0% |
| 1Q15 | 0 | -100.0% |
| 4Q14 | 49,000 | -21.0% |
| 3Q14 | 98,000 | +2.1% |
| 2Q14 | 50,000 | +733.3% |
| 1Q14 | 53,000 | - |
| 4Q13 | 62,000 | +675.0% |
| 3Q13 | 96,000 | +966.7% |
| 2Q13 | 6,000 | -25.0% |
| 1Q13 | 0 | -100.0% |
| 4Q12 | 8,000 | +166.7% |
| 3Q12 | 9,000 | -40.0% |
| 2Q12 | 8,000 | -20.0% |
| 1Q12 | 20,000 | +566.7% |
| 4Q11 | 3,000 | -57.1% |
| 3Q11 | 15,000 | -28.6% |
| 2Q11 | 10,000 | - |
| 1Q11 | 3,000 | - |
| 4Q10 | 7,000 | - |
| 3Q10 | 21,000 | - |