| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 1Q23 | 2,025 | -93.8% |
| 4Q22 | 4,775 | -87.3% |
| 3Q22 | 12,984 | -69.9% |
| 2Q22 | 17,753 | -61.5% |
| 1Q22 | 32,644 | +56.2% |
| 4Q21 | 37,631 | +39.3% |
| 3Q21 | 43,092 | +34.3% |
| 2Q21 | 46,093 | +421.9% |
| 1Q21 | 20,904 | +247.3% |
| 4Q20 | 27,005 | - |
| 3Q20 | 32,082 | - |
| 2Q20 | 8,831 | +28.9% |
| 1Q20 | 6,018 | -63.0% |
| 2Q19 | 6,851 | -76.1% |
| 1Q19 | 16,267 | -55.3% |
| 4Q18 | 22,131 | -44.5% |
| 3Q18 | 26,645 | -44.8% |
| 2Q18 | 28,724 | +70.7% |
| 1Q18 | 36,379 | +50.5% |
| 4Q17 | 39,858 | -36.4% |
| 3Q17 | 48,254 | +48.3% |
| 2Q17 | 16,829 | +98.0% |
| 1Q17 | 24,172 | +29.8% |
| 4Q16 | 62,708 | +173.3% |
| 3Q16 | 32,548 | +277.7% |
| 2Q16 | 8,499 | -26.9% |
| 1Q16 | 18,627 | +77.0% |
| 4Q15 | 22,948 | +1273.7% |
| 3Q15 | 8,618 | - |
| 2Q15 | 11,621 | - |
| 1Q15 | 10,526 | - |
| 4Q14 | 1,670 | - |