| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 7,000 | +7.7% |
| 2023/12 | 6,500 | -14.5% |
| 2022/12 | 7,600 | -30.9% |
| 2021/12 | 11,000 | +6.8% |
| 2020/12 | 10,300 | -51.9% |
| 2019/12 | 21,400 | -4.5% |
| 2018/12 | 22,400 | -76.9% |
| 2017/12 | 96,800 | +2.2% |
| 2016/12 | 94,700 | +11.2% |
| 2015/12 | 85,200 | +1.9% |
| 2014/12 | 83,625 | +1.3% |
| 2013/12 | 82,591 | +7.1% |
| 2012/12 | 77,101 | +3.0% |
| 2011/12 | 74,869 | -1.7% |
| 2010/12 | 76,138 | - |