| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 2025/1 | 541,663 | -4.1% |
| 2024/1 | 565,090 | +2.8% |
| 2023/1 | 549,821 | +3.9% |
| 2022/1 | 529,094 | -29.4% |
| 2021/1 | 749,406 | -0.3% |
| 2020/1 | 752,012 | +12.9% |
| 2019/1 | 666,299 | +4.1% |
| 2018/1 | 639,812 | +2.8% |
| 2017/1 | 622,111 | -1.8% |
| 2016/1 | 633,508 | -0.1% |
| 2015/1 | 634,177 | +32.5% |
| 2014/1 | 478,586 | +4.5% |
| 2013/1 | 457,985 | +7.1% |
| 2012/1 | 427,809 | - |