| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 3Q18 | 52,395 | -3.0% |
| 2Q18 | 50,090 | -13.8% |
| 1Q18 | 54,258 | -10.2% |
| 4Q17 | 54,333 | -11.1% |
| 3Q17 | 54,019 | -14.4% |
| 2Q17 | 58,129 | +0.8% |
| 1Q17 | 60,417 | +46.1% |
| 4Q16 | 61,147 | -36.0% |
| 3Q16 | 63,104 | +7.8% |
| 2Q16 | 57,673 | -5.0% |
| 1Q16 | 41,356 | -32.0% |
| 4Q15 | 95,550 | +74.1% |
| 3Q15 | 58,565 | +5.5% |
| 2Q15 | 60,677 | -25.1% |
| 1Q15 | 60,832 | -20.7% |
| 4Q14 | 54,885 | -66.1% |
| 3Q14 | 55,497 | -36.2% |
| 2Q14 | 81,024 | -34.4% |
| 1Q14 | 76,740 | -36.4% |
| 4Q13 | 162,026 | +20.1% |
| 3Q13 | 86,961 | -41.1% |
| 2Q13 | 123,550 | -17.0% |
| 1Q13 | 120,608 | -15.6% |
| 4Q12 | 134,876 | -1.5% |
| 3Q12 | 147,757 | +6.3% |
| 2Q12 | 148,777 | +10.1% |
| 1Q12 | 142,885 | - |
| 4Q11 | 136,991 | - |
| 3Q11 | 139,033 | - |
| 2Q11 | 135,114 | - |