| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 2024/12 | 49,900 | -0.8% |
| 2023/12 | 50,315 | -7.1% |
| 2022/12 | 54,146 | -5.0% |
| 2021/12 | 56,968 | +18.3% |
| 2020/12 | 48,174 | +19.9% |
| 2019/12 | 40,173 | +10.6% |
| 2018/12 | 36,330 | +13.7% |
| 2017/12 | 31,966 | +0.9% |
| 2016/12 | 31,693 | -2.9% |
| 2015/12 | 32,653 | +8.0% |
| 2014/12 | 30,244 | +13.9% |
| 2013/12 | 26,562 | +12.9% |
| 2012/12 | 23,517 | -7.8% |
| 2011/12 | 25,499 | - |