| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 1Q23 | 5,275 | -85.8% |
| 4Q22 | 18,193 | -61.6% |
| 3Q22 | 41,357 | -22.7% |
| 2Q22 | 23,574 | -60.9% |
| 1Q22 | 37,036 | +24.8% |
| 4Q21 | 47,400 | +122.4% |
| 3Q21 | 53,532 | +111.8% |
| 2Q21 | 60,284 | +114.5% |
| 1Q21 | 29,671 | -10.8% |
| 4Q20 | 21,313 | -44.6% |
| 3Q20 | 25,276 | -41.4% |
| 2Q20 | 28,103 | -39.0% |
| 1Q20 | 33,274 | -35.1% |
| 4Q19 | 38,477 | -31.0% |
| 3Q19 | 43,101 | -29.8% |
| 2Q19 | 46,095 | -8.0% |
| 1Q19 | 51,263 | -4.8% |
| 4Q18 | 55,748 | -5.5% |
| 3Q18 | 61,362 | - |
| 2Q18 | 50,081 | - |
| 1Q18 | 53,864 | - |
| 4Q17 | 58,975 | - |