| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 2025/1 | 14,149 | -8.4% |
| 2024/1 | 15,453 | -24.9% |
| 2023/1 | 20,589 | +0.1% |
| 2022/1 | 20,566 | -4.9% |
| 2021/1 | 21,637 | -19.9% |
| 2020/1 | 26,996 | +9.0% |
| 2019/1 | 24,760 | -4.0% |
| 2018/1 | 25,792 | +8.0% |
| 2017/1 | 23,876 | -18.9% |
| 2016/1 | 29,429 | -1.9% |
| 2015/1 | 29,999 | +14.5% |
| 2014/1 | 26,210 | +11.5% |
| 2013/1 | 23,511 | +1.3% |
| 2012/1 | 23,208 | - |