| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 3Q21 | 2,005 | -94.9% |
| 2Q21 | 2,006 | -95.9% |
| 1Q21 | 7,676 | -75.5% |
| 4Q20 | 24,215 | - |
| 3Q20 | 39,371 | +1847.1% |
| 2Q20 | 48,856 | - |
| 1Q20 | 31,373 | - |
| 3Q19 | 2,022 | -57.9% |
| 4Q18 | 2,001 | -93.2% |
| 3Q18 | 4,804 | -87.8% |
| 2Q18 | 8,781 | -76.4% |
| 1Q18 | 10,314 | -74.4% |
| 4Q17 | 29,396 | -35.3% |
| 3Q17 | 39,498 | -20.4% |
| 2Q17 | 37,269 | -13.2% |
| 1Q17 | 40,257 | -19.8% |
| 4Q16 | 45,434 | +34.1% |
| 3Q16 | 49,598 | +44.1% |
| 2Q16 | 42,933 | +24.8% |
| 1Q16 | 50,165 | +30.2% |
| 4Q15 | 33,878 | +291.3% |
| 3Q15 | 34,430 | - |
| 2Q15 | 34,407 | - |
| 1Q15 | 38,539 | - |
| 4Q14 | 8,658 | - |