| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 4Q23 | 25 | -97.6% |
| 3Q23 | 1,066 | -63.1% |
| 2Q23 | 1,064 | -63.6% |
| 1Q23 | 1,059 | -64.6% |
| 4Q22 | 1,059 | -66.4% |
| 3Q22 | 2,893 | -9.5% |
| 2Q22 | 2,921 | -21.8% |
| 1Q22 | 2,995 | +23.9% |
| 4Q21 | 3,155 | - |
| 3Q21 | 3,195 | +37.2% |
| 2Q21 | 3,734 | +54.9% |
| 1Q21 | 2,417 | -1.8% |
| 3Q20 | 2,329 | -6.9% |
| 2Q20 | 2,411 | -10.3% |
| 1Q20 | 2,460 | -16.8% |
| 4Q19 | 2,653 | -17.5% |
| 3Q19 | 2,501 | - |
| 2Q19 | 2,689 | - |
| 1Q19 | 2,958 | - |
| 4Q18 | 3,217 | - |