| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 1Q21 | 19,999 | - |
| 4Q20 | 39,992 | +16223.3% |
| 3Q20 | 99,969 | +339.9% |
| 2Q20 | 49,943 | +0.8% |
| 4Q19 | 245 | -99.9% |
| 3Q19 | 22,727 | -90.0% |
| 2Q19 | 49,553 | -79.2% |
| 1Q19 | 105,297 | -55.2% |
| 4Q18 | 216,996 | -56.2% |
| 3Q18 | 227,714 | -5.2% |
| 2Q18 | 238,597 | +21.8% |
| 1Q18 | 234,858 | +42.7% |
| 4Q17 | 495,272 | +578.4% |
| 3Q17 | 240,106 | +151.4% |
| 2Q17 | 195,825 | +37.4% |
| 1Q17 | 164,555 | -5.2% |
| 4Q16 | 73,008 | -17.7% |
| 3Q16 | 95,492 | +5.2% |
| 2Q16 | 142,472 | +86.1% |
| 1Q16 | 173,586 | +139.6% |
| 4Q15 | 88,676 | +16.5% |
| 3Q15 | 90,754 | +32.2% |
| 2Q15 | 76,541 | +165.3% |
| 1Q15 | 72,446 | +1142.2% |
| 4Q14 | 76,138 | - |
| 3Q14 | 68,670 | - |
| 2Q14 | 28,851 | - |
| 1Q14 | 5,831 | - |