| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 3Q23 | 17,500 | -11.2% |
| 2Q23 | 14,400 | -27.3% |
| 1Q23 | 17,100 | +5.6% |
| 4Q22 | 17,400 | +5.5% |
| 3Q22 | 19,700 | +48.1% |
| 2Q22 | 19,800 | +42.4% |
| 1Q22 | 16,200 | -28.9% |
| 4Q21 | 16,500 | -34.0% |
| 3Q21 | 13,300 | -45.8% |
| 2Q21 | 13,900 | - |
| 1Q21 | 22,800 | - |
| 4Q20 | 25,000 | +468.2% |
| 3Q20 | 24,522 | - |
| 4Q19 | 4,400 | -85.9% |
| 4Q18 | 31,200 | +21.9% |
| 4Q17 | 25,592 | +724.2% |
| 4Q16 | 3,105 | +101.9% |
| 4Q15 | 1,538 | +447.3% |
| 4Q14 | 281 | -64.9% |
| 4Q13 | 801 | -17.5% |
| 4Q12 | 971 | -35.5% |
| 1Q12 | 730 | - |
| 4Q11 | 1,505 | - |
| 3Q11 | 1,663 | - |