| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 4Q22 | 122,285 | -4.4% |
| 4Q21 | 127,856 | +47.4% |
| 3Q21 | 105,562 | +27.3% |
| 2Q21 | 94,033 | +23.7% |
| 1Q21 | 91,720 | +203.4% |
| 4Q20 | 86,729 | +187.5% |
| 3Q20 | 82,953 | +156.9% |
| 2Q20 | 76,025 | +140.5% |
| 1Q20 | 30,232 | -13.0% |
| 4Q19 | 30,170 | +5.0% |
| 3Q19 | 32,290 | +13.1% |
| 2Q19 | 31,616 | +17.1% |
| 1Q19 | 34,757 | +32.4% |
| 4Q18 | 28,730 | +15.7% |
| 3Q18 | 28,540 | -1.4% |
| 2Q18 | 26,994 | -5.3% |
| 1Q18 | 26,246 | +14.2% |
| 4Q17 | 24,838 | +13.2% |
| 3Q17 | 28,958 | +3.8% |
| 2Q17 | 28,492 | +9.3% |
| 1Q17 | 22,991 | -0.0% |
| 4Q16 | 21,937 | +25.5% |
| 3Q16 | 27,899 | +71.7% |
| 2Q16 | 26,068 | +48.8% |
| 1Q16 | 22,992 | +67.8% |
| 4Q15 | 17,482 | +30.5% |
| 3Q15 | 16,249 | +35.2% |
| 2Q15 | 17,524 | +56.3% |
| 1Q15 | 13,703 | +157.8% |
| 4Q14 | 13,397 | +251.1% |
| 3Q14 | 12,019 | +215.0% |
| 2Q14 | 11,213 | +193.8% |
| 1Q14 | 5,316 | +39.3% |
| 4Q13 | 3,816 | +110.1% |
| 3Q13 | 3,816 | +110.1% |
| 2Q13 | 3,816 | +110.1% |
| 1Q13 | 3,816 | +18.1% |
| 4Q12 | 1,816 | -38.5% |
| 3Q12 | 1,816 | -45.3% |
| 2Q12 | 1,816 | -49.0% |
| 1Q12 | 3,230 | -1.6% |
| 4Q11 | 2,951 | +124.1% |
| 3Q11 | 3,319 | +191.1% |
| 2Q11 | 3,561 | +117.1% |
| 1Q11 | 3,283 | - |
| 4Q10 | 1,317 | - |
| 3Q10 | 1,140 | - |
| 2Q10 | 1,640 | - |