| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2Q21 | 17,000 | -73.4% |
| 1Q21 | 17,000 | -87.1% |
| 4Q20 | 7,000 | -74.1% |
| 3Q20 | 4,000 | -94.9% |
| 2Q20 | 64,000 | +1.6% |
| 1Q20 | 132,000 | +59.0% |
| 4Q19 | 27,000 | -55.0% |
| 3Q19 | 79,000 | -39.2% |
| 2Q19 | 63,000 | -13.7% |
| 1Q19 | 83,000 | -49.4% |
| 4Q18 | 60,000 | -34.8% |
| 3Q18 | 130,000 | +271.4% |
| 2Q18 | 73,000 | -53.5% |
| 1Q18 | 164,000 | -71.5% |
| 4Q17 | 92,000 | -85.9% |
| 3Q17 | 35,000 | -92.5% |
| 2Q17 | 157,000 | -64.2% |
| 1Q17 | 576,000 | +48.8% |
| 4Q16 | 651,000 | +118.5% |
| 3Q16 | 467,000 | +893.6% |
| 2Q16 | 439,000 | +644.1% |
| 1Q16 | 387,000 | +325.3% |
| 4Q15 | 298,000 | +3211.1% |
| 3Q15 | 47,000 | +327.3% |
| 2Q15 | 59,000 | -49.1% |
| 1Q15 | 91,000 | -42.8% |
| 4Q14 | 9,000 | -97.2% |
| 3Q14 | 11,000 | -90.0% |
| 2Q14 | 116,000 | +58.9% |
| 1Q14 | 159,000 | +38.3% |
| 4Q13 | 316,000 | +474.5% |
| 3Q13 | 110,000 | +35.8% |
| 2Q13 | 73,000 | -6.4% |
| 1Q13 | 115,000 | +130.0% |
| 4Q12 | 55,000 | -43.3% |
| 3Q12 | 81,000 | -9.0% |
| 2Q12 | 78,000 | +457.1% |
| 1Q12 | 50,000 | +614.3% |
| 4Q11 | 97,000 | +1516.7% |
| 3Q11 | 89,000 | - |
| 2Q11 | 14,000 | - |
| 1Q11 | 7,000 | - |
| 4Q10 | 6,000 | - |