| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 1Q23 | 18,397 | -69.6% |
| 4Q22 | 10,601 | -81.0% |
| 3Q22 | 3,719 | -91.4% |
| 2Q22 | 8,152 | -77.8% |
| 1Q22 | 60,503 | +102.1% |
| 4Q21 | 55,697 | +153.1% |
| 3Q21 | 43,289 | +230.5% |
| 2Q21 | 36,641 | +62.4% |
| 1Q21 | 29,943 | -42.8% |
| 4Q20 | 22,008 | -68.6% |
| 3Q20 | 13,098 | -78.1% |
| 2Q20 | 22,563 | -53.7% |
| 1Q20 | 52,350 | +31.3% |
| 4Q19 | 70,183 | +165.9% |
| 3Q19 | 59,793 | +366.3% |
| 2Q19 | 48,701 | +215.3% |
| 1Q19 | 39,877 | +250.4% |
| 4Q18 | 26,397 | -73.6% |
| 3Q18 | 12,822 | -82.3% |
| 2Q18 | 15,446 | -86.7% |
| 1Q18 | 11,380 | -87.5% |
| 4Q17 | 99,813 | +64.8% |
| 3Q17 | 72,342 | +7.7% |
| 2Q17 | 116,087 | +34.3% |
| 1Q17 | 91,090 | -24.2% |
| 4Q16 | 60,582 | -51.2% |
| 3Q16 | 67,148 | -36.7% |
| 2Q16 | 86,460 | +0.8% |
| 1Q16 | 120,226 | +59.9% |
| 4Q15 | 124,246 | -52.8% |
| 3Q15 | 106,061 | -50.9% |
| 2Q15 | 85,796 | -57.0% |
| 1Q15 | 75,198 | -54.6% |
| 4Q14 | 263,417 | +25.2% |
| 3Q14 | 215,792 | +255.4% |
| 2Q14 | 199,423 | +198.8% |
| 1Q14 | 165,540 | +101.0% |
| 4Q13 | 210,470 | +81.6% |
| 3Q13 | 60,717 | -38.9% |
| 2Q13 | 66,731 | -33.4% |
| 1Q13 | 82,359 | -23.0% |
| 4Q12 | 115,877 | - |
| 3Q12 | 99,342 | - |
| 2Q12 | 100,130 | - |
| 1Q12 | 107,016 | - |