| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 2025/5 | -5,677 | -156.3% |
| 2024/5 | 10,078 | -24.7% |
| 2023/5 | 13,375 | +71.5% |
| 2022/5 | 7,800 | -286.5% |
| 2021/5 | -4,182 | +51.2% |
| 2020/5 | -2,765 | -44.7% |
| 2019/5 | -5,000 | -646.4% |
| 2018/5 | 915 | -118.6% |
| 2017/5 | -4,929 | -19.9% |
| 2016/5 | -6,154 | -8.1% |
| 2015/5 | -6,694 | -1446.9% |
| 2014/5 | 497 | -115.0% |
| 2013/5 | -3,307 | -26.6% |
| 2012/5 | -4,507 | - |