| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 2024/12 | 49,524 | -5.4% |
| 2023/12 | 52,359 | +7.9% |
| 2022/12 | 48,538 | -0.0% |
| 2021/12 | 48,562 | +8.6% |
| 2020/12 | 44,697 | +15.4% |
| 2019/12 | 38,731 | -4.0% |
| 2018/12 | 40,332 | +3.9% |
| 2017/12 | 38,802 | +5.4% |
| 2016/12 | 36,807 | +0.9% |
| 2015/12 | 36,494 | -0.0% |
| 2014/12 | 36,507 | -10.4% |
| 2013/12 | 40,763 | +5.4% |
| 2012/12 | 38,667 | +4.9% |
| 2011/12 | 36,844 | - |