| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 4Q21 | 6,200 | -4.6% |
| 3Q21 | 6,400 | +1.6% |
| 2Q21 | 6,600 | +10.0% |
| 1Q21 | 6,500 | +8.3% |
| 4Q20 | 6,500 | +11.0% |
| 3Q20 | 6,300 | -37.9% |
| 2Q20 | 6,000 | -42.3% |
| 1Q20 | 6,000 | -42.0% |
| 4Q19 | 5,854 | -43.1% |
| 3Q19 | 10,146 | -2.5% |
| 2Q19 | 10,401 | -0.7% |
| 1Q19 | 10,350 | -4.5% |
| 4Q18 | 10,290 | -3.4% |
| 3Q18 | 10,404 | -1.8% |
| 2Q18 | 10,476 | +1.4% |
| 1Q18 | 10,841 | +9.1% |
| 4Q17 | 10,655 | +8.1% |
| 3Q17 | 10,593 | -30.6% |
| 2Q17 | 10,329 | -32.2% |
| 1Q17 | 9,933 | - |
| 4Q16 | 9,858 | - |
| 3Q16 | 15,256 | -93.7% |
| 2Q16 | 15,230 | -94.1% |
| 3Q15 | 240,908 | +78.8% |
| 2Q15 | 256,855 | +217.4% |
| 1Q15 | 237,313 | +342.6% |
| 4Q14 | 157,201 | +160.2% |
| 3Q14 | 134,749 | +2499.8% |
| 2Q14 | 80,912 | +412.5% |
| 1Q14 | 53,620 | +427.9% |
| 4Q13 | 60,405 | +396.8% |
| 3Q13 | 5,183 | -87.1% |
| 2Q13 | 15,788 | -10.1% |
| 1Q13 | 10,157 | -38.4% |
| 4Q12 | 12,158 | +54.4% |
| 3Q12 | 40,062 | +332.6% |
| 2Q12 | 17,568 | +232.9% |
| 1Q12 | 16,481 | +1166.8% |
| 4Q11 | 7,873 | - |
| 3Q11 | 9,260 | - |
| 2Q11 | 5,277 | - |
| 1Q11 | 1,301 | - |
| 4Q10 | 0 | - |