| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 4Q23 | 179,820 | -51.2% |
| 4Q22 | 368,214 | +170.3% |
| 3Q22 | 280,297 | +22.6% |
| 2Q22 | 187,359 | +0.7% |
| 1Q22 | 196,485 | +45.1% |
| 4Q21 | 136,246 | +1.8% |
| 3Q21 | 228,571 | +54.8% |
| 2Q21 | 186,070 | +13.6% |
| 1Q21 | 135,459 | -22.6% |
| 4Q20 | 133,893 | -19.2% |
| 3Q20 | 147,657 | -17.9% |
| 2Q20 | 163,839 | -4.3% |
| 1Q20 | 175,104 | +2.9% |
| 4Q19 | 165,692 | +1.2% |
| 3Q19 | 179,808 | +15.0% |
| 2Q19 | 171,222 | +23.0% |
| 1Q19 | 170,165 | +273.3% |
| 4Q18 | 163,770 | +312.1% |
| 3Q18 | 156,407 | +379.4% |
| 2Q18 | 139,208 | +345.8% |
| 1Q18 | 45,585 | +65.6% |
| 4Q17 | 39,736 | +67.5% |
| 3Q17 | 32,626 | +25.4% |
| 2Q17 | 31,229 | +29.8% |
| 1Q17 | 27,533 | +8.3% |
| 4Q16 | 23,723 | -17.3% |
| 3Q16 | 26,024 | -17.1% |
| 2Q16 | 24,058 | -34.4% |
| 1Q16 | 25,427 | -34.8% |
| 4Q15 | 28,692 | -24.4% |
| 3Q15 | 31,408 | -9.7% |
| 2Q15 | 36,681 | +3.9% |
| 1Q15 | 39,026 | -16.3% |
| 4Q14 | 37,940 | -22.9% |
| 3Q14 | 34,783 | -45.9% |
| 2Q14 | 35,314 | -48.6% |
| 1Q14 | 46,615 | -8.6% |
| 4Q13 | 49,211 | +2.1% |
| 3Q13 | 64,293 | +72.6% |
| 2Q13 | 68,725 | +135.8% |
| 1Q13 | 50,983 | +137.0% |
| 4Q12 | 48,206 | - |
| 3Q12 | 37,256 | - |
| 2Q12 | 29,150 | - |
| 1Q12 | 21,513 | - |