| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 3Q19 | 26,000 | - |
| 2Q19 | 4,000 | - |
| 1Q19 | 9,000 | - |
| 4Q18 | 6,000 | - |
| 4Q17 | 0 | -100.0% |
| 3Q17 | 261,000 | +2.0% |
| 2Q17 | 237,000 | -40.2% |
| 1Q17 | 272,000 | -48.2% |
| 4Q16 | 296,000 | -32.4% |
| 3Q16 | 256,000 | -38.6% |
| 2Q16 | 396,000 | +28.2% |
| 1Q16 | 525,000 | +29.3% |
| 4Q15 | 438,000 | -15.0% |
| 3Q15 | 417,000 | +19.8% |
| 2Q15 | 309,000 | -15.6% |
| 1Q15 | 406,000 | -10.2% |
| 4Q14 | 515,000 | -40.5% |
| 3Q14 | 348,000 | +43.8% |
| 2Q14 | 366,000 | +102.2% |
| 1Q14 | 452,000 | +147.0% |
| 4Q13 | 866,000 | +392.0% |
| 3Q13 | 242,000 | -52.3% |
| 2Q13 | 181,000 | +2.8% |
| 1Q13 | 183,000 | -57.2% |
| 1Q12 | 507,000 | +0.2% |
| 4Q12 | 176,000 | -76.2% |
| 3Q12 | 428,000 | -44.1% |
| 2Q12 | 594,000 | -6.2% |
| 1Q12 | 506,000 | -0.4% |
| 4Q11 | 739,000 | +87.6% |
| 3Q11 | 765,000 | +88.0% |
| 2Q11 | 633,000 | - |
| 1Q11 | 508,000 | - |
| 4Q10 | 394,000 | - |
| 3Q10 | 407,000 | - |