| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 2024/12 | 52,930 | -0.7% |
| 2023/12 | 53,280 | -0.6% |
| 2022/12 | 53,612 | +4.4% |
| 2021/12 | 51,336 | +27.7% |
| 2020/12 | 40,211 | -6.8% |
| 2019/12 | 43,131 | +3.3% |
| 2018/12 | 41,763 | +7.7% |
| 2017/12 | 38,784 | +1.3% |
| 2016/12 | 38,301 | +3.3% |
| 2015/12 | 37,090 | +12.2% |
| 2014/12 | 33,059 | +11.0% |
| 2013/12 | 29,780 | +9.1% |
| 2012/12 | 27,299 | +9.9% |
| 2011/12 | 24,847 | - |