| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2025/12 | 6,100 | +7.0% |
| 2024/12 | 5,700 | +18.8% |
| 2023/12 | 4,800 | +300.0% |
| 2022/12 | 1,200 | -63.6% |
| 2021/12 | 3,300 | +13.8% |
| 2020/12 | 2,900 | -53.2% |
| 2019/12 | 6,200 | +29.2% |
| 2018/12 | 4,800 | -98.1% |
| 2017/12 | 255,700 | +0.9% |
| 2016/12 | 253,500 | -0.5% |
| 2015/12 | 254,900 | -0.3% |
| 2014/12 | 255,600 | +0.9% |
| 2013/12 | 253,300 | -1.4% |
| 2012/12 | 256,800 | -27.5% |
| 2011/12 | 354,100 | - |