| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 1Q20 | 39,300 | +76.2% |
| 4Q19 | 157,400 | +114.4% |
| 3Q19 | 25,300 | -71.4% |
| 2Q19 | 24,400 | -66.1% |
| 1Q19 | 22,300 | -73.4% |
| 4Q18 | 73,400 | -60.0% |
| 3Q18 | 88,400 | -53.8% |
| 2Q18 | 71,900 | -59.1% |
| 1Q18 | 83,800 | -57.1% |
| 4Q17 | 183,700 | -20.5% |
| 3Q17 | 191,400 | -4.8% |
| 2Q17 | 175,700 | +144.0% |
| 1Q17 | 195,500 | +1855.0% |
| 4Q16 | 231,000 | +670.0% |
| 3Q16 | 201,000 | +570.0% |
| 2Q16 | 72,000 | +140.0% |
| 1Q16 | 10,000 | -66.7% |
| 4Q15 | 30,000 | -73.7% |
| 3Q15 | 30,000 | -70.0% |
| 2Q15 | 30,000 | -76.4% |
| 1Q15 | 30,000 | -71.3% |
| 4Q14 | 114,000 | -12.0% |
| 3Q14 | 100,100 | -13.6% |
| 2Q14 | 127,200 | +168.9% |
| 1Q14 | 104,500 | +22.1% |
| 4Q13 | 129,500 | +52.4% |
| 3Q13 | 115,900 | +45.1% |
| 2Q13 | 47,300 | - |
| 1Q13 | 85,600 | - |
| 4Q12 | 85,000 | - |
| 3Q12 | 79,900 | - |