| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 1Q23 | 3,847 | +1.5% |
| 4Q22 | 3,804 | -0.2% |
| 3Q22 | 3,820 | 0.0% |
| 2Q22 | 3,777 | +14.5% |
| 1Q22 | 3,789 | -1.0% |
| 4Q21 | 3,811 | +2.8% |
| 3Q21 | 3,820 | +3.3% |
| 2Q21 | 3,300 | -11.1% |
| 1Q21 | 3,827 | +3.6% |
| 4Q20 | 3,707 | -36.6% |
| 3Q20 | 3,699 | +2.2% |
| 2Q20 | 3,710 | +2.7% |
| 1Q20 | 3,694 | +2.6% |
| 4Q19 | 5,843 | +62.4% |
| 3Q19 | 3,618 | +32.4% |
| 2Q19 | 3,614 | +98.1% |
| 1Q19 | 3,601 | +248.3% |
| 4Q18 | 3,597 | +22.6% |
| 3Q18 | 2,732 | -15.5% |
| 2Q18 | 1,824 | -59.0% |
| 1Q18 | 1,034 | -91.7% |
| 4Q17 | 2,934 | -79.8% |
| 3Q17 | 3,234 | -78.0% |
| 2Q17 | 4,446 | -70.1% |
| 1Q17 | 12,411 | +198.6% |
| 4Q16 | 14,517 | +317.6% |
| 3Q16 | 14,700 | +553.0% |
| 2Q16 | 14,881 | +230.3% |
| 1Q16 | 4,156 | -60.3% |
| 4Q15 | 3,476 | -28.1% |
| 3Q15 | 2,251 | -88.2% |
| 2Q15 | 4,505 | +6.0% |
| 1Q15 | 10,469 | +64.9% |
| 4Q14 | 4,837 | -55.0% |
| 3Q14 | 19,046 | -58.4% |
| 2Q14 | 4,249 | -93.9% |
| 1Q14 | 6,348 | -93.2% |
| 4Q13 | 10,748 | -87.9% |
| 3Q13 | 45,837 | -67.1% |
| 2Q13 | 69,118 | -55.6% |
| 1Q13 | 93,382 | -16.1% |
| 4Q12 | 88,769 | - |
| 3Q12 | 139,156 | +249.9% |
| 2Q12 | 155,554 | +471.3% |
| 1Q12 | 111,237 | - |
| 3Q11 | 39,774 | - |
| 2Q11 | 27,228 | - |