| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 2025/9 | 21,620 | +4.3% |
| 2024/9 | 20,727 | +3.4% |
| 2023/9 | 20,050 | +6.3% |
| 2022/9 | 18,867 | +7.7% |
| 2021/9 | 17,511 | -5.8% |
| 2020/9 | 18,591 | -1.4% |
| 2019/9 | 18,852 | -5.7% |
| 2018/9 | 20,000 | -7.9% |
| 2017/9 | 21,718 | +2.3% |
| 2016/9 | 21,240 | +12.0% |
| 2015/9 | 18,961 | -3.3% |
| 2014/9 | 19,600 | +9.6% |
| 2013/9 | 17,882 | +1.8% |
| 2012/9 | 17,567 | +12.9% |
| 2011/9 | 15,560 | - |