| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 4,000 | -7.0% |
| 2023/12 | 4,300 | -23.2% |
| 2022/12 | 5,600 | +14.3% |
| 2021/12 | 4,900 | +19.5% |
| 2020/12 | 4,100 | +156.3% |
| 2019/12 | 1,600 | -57.9% |
| 2018/12 | 3,800 | +40.7% |
| 2017/12 | 2,700 | +35.0% |
| 2016/12 | 2,000 | -23.1% |
| 2015/12 | 2,600 | +225.0% |
| 2014/12 | 800 | -94.9% |
| 2013/12 | 15,800 | +11.4% |
| 2012/12 | 14,178 | -23.3% |
| 2011/12 | 18,494 | +10.7% |
| 2010/12 | 16,707 | - |