| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 3Q19 | 44,122 | -27.0% |
| 2Q19 | 48,431 | -33.2% |
| 1Q19 | 50,240 | +6.2% |
| 4Q18 | 57,501 | +14.2% |
| 3Q18 | 60,419 | +41.3% |
| 2Q18 | 72,517 | +111.3% |
| 1Q18 | 47,298 | +21.1% |
| 4Q17 | 50,366 | +25.4% |
| 3Q17 | 42,759 | +2.6% |
| 2Q17 | 34,315 | -18.0% |
| 1Q17 | 39,049 | +12.8% |
| 4Q16 | 40,179 | -30.2% |
| 3Q16 | 41,661 | -45.8% |
| 2Q16 | 41,873 | -47.1% |
| 1Q16 | 34,611 | - |
| 4Q15 | 57,595 | - |
| 3Q15 | 76,865 | - |
| 2Q15 | 79,089 | - |