| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 2024/12 | 22,247 | -0.5% |
| 2023/12 | 22,353 | +2.3% |
| 2022/12 | 21,855 | -4.8% |
| 2021/12 | 22,954 | +5.6% |
| 2020/12 | 21,727 | -2.9% |
| 2019/12 | 22,370 | -0.5% |
| 2018/12 | 22,480 | +1.0% |
| 2017/12 | 22,251 | -4.1% |
| 2016/12 | 23,204 | -17.4% |
| 2015/12 | 28,106 | +3.3% |
| 2014/12 | 27,208 | +6.1% |
| 2013/12 | 25,654 | +1.5% |
| 2012/12 | 25,276 | -12.2% |
| 2011/12 | 28,780 | - |