| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 4Q22 | 24,018 | +121.5% |
| 4Q21 | 10,844 | -28.4% |
| 3Q21 | 8,030 | -53.7% |
| 2Q21 | 11,083 | -8.9% |
| 1Q21 | 11,717 | +138.2% |
| 4Q20 | 15,148 | +144.0% |
| 3Q20 | 17,362 | +136.2% |
| 2Q20 | 12,162 | +109.1% |
| 1Q20 | 4,919 | -27.3% |
| 4Q19 | 6,207 | -5.7% |
| 3Q19 | 7,349 | +2.2% |
| 2Q19 | 5,815 | -21.9% |
| 1Q19 | 6,768 | -11.6% |
| 4Q18 | 6,583 | -12.9% |
| 3Q18 | 7,190 | +1.3% |
| 2Q18 | 7,449 | +57.5% |
| 1Q18 | 7,652 | +49.9% |
| 4Q17 | 7,561 | +51.2% |
| 3Q17 | 7,098 | +11.7% |
| 2Q17 | 4,729 | +6.2% |
| 1Q17 | 5,104 | +144.7% |
| 4Q16 | 5,002 | +230.2% |
| 3Q16 | 6,356 | +217.3% |
| 2Q16 | 4,453 | +66.7% |
| 1Q16 | 2,086 | -51.9% |
| 4Q15 | 1,515 | -69.2% |
| 3Q15 | 2,003 | -71.5% |
| 2Q15 | 2,672 | -64.2% |
| 1Q15 | 4,334 | -50.4% |
| 4Q14 | 4,920 | -29.9% |
| 3Q14 | 7,022 | -16.0% |
| 2Q14 | 7,466 | -14.8% |
| 1Q14 | 8,730 | -7.4% |
| 4Q13 | 7,019 | -27.0% |
| 3Q13 | 8,364 | -7.3% |
| 2Q13 | 8,766 | +228.2% |
| 1Q13 | 9,429 | +163.1% |
| 4Q12 | 9,614 | +145.1% |
| 3Q12 | 9,023 | - |
| 2Q12 | 2,671 | - |
| 1Q12 | 3,584 | - |
| 4Q11 | 3,923 | +228.6% |
| 4Q10 | 1,194 | - |