| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 2025/4 | 1,771 | -75.2% |
| 2024/4 | 7,133 | -71.4% |
| 2023/4 | 24,957 | +170.4% |
| 2022/4 | 9,229 | +172.3% |
| 2021/4 | 3,389 | +20.5% |
| 2020/4 | 2,812 | -8.6% |
| 2019/4 | 3,078 | -205.8% |
| 2018/4 | -2,910 | -189.1% |
| 2017/4 | 3,266 | -24.5% |
| 2016/4 | 4,324 | +64.0% |
| 2015/4 | 2,637 | -27.3% |
| 2014/4 | 3,626 | +131.4% |
| 2013/4 | 1,567 | -40.7% |
| 2012/4 | 2,642 | - |