| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2Q22 | 7,400 | +2.8% |
| 1Q22 | 8,000 | +14.3% |
| 4Q21 | 7,700 | +10.0% |
| 3Q21 | 7,500 | -15.7% |
| 2Q21 | 7,200 | -20.0% |
| 1Q21 | 7,000 | -22.2% |
| 4Q20 | 7,000 | -60.2% |
| 3Q20 | 8,900 | - |
| 2Q20 | 9,000 | - |
| 1Q20 | 9,000 | - |
| 4Q19 | 17,600 | +104.7% |
| 4Q18 | 8,600 | 0.0% |
| 4Q17 | 8,600 | +14.7% |
| 4Q16 | 7,500 | +31.6% |
| 4Q15 | 5,700 | -48.6% |
| 4Q14 | 11,100 | +2.8% |
| 4Q13 | 10,800 | +12.5% |
| 4Q12 | 9,600 | -56.4% |
| 3Q12 | 10,700 | -8.5% |
| 2Q12 | 9,700 | - |
| 1Q12 | 10,200 | - |
| 4Q11 | 22,000 | - |
| 3Q11 | 11,700 | - |