| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 2023/12 | 461,827 | +4.2% |
| 2022/12 | 443,377 | +2.7% |
| 2021/12 | 431,812 | +16.4% |
| 2020/12 | 370,963 | +6.2% |
| 2019/12 | 349,161 | -1.3% |
| 2018/12 | 353,888 | +18.9% |
| 2017/12 | 297,675 | +6.4% |
| 2016/12 | 279,668 | +11.4% |
| 2015/12 | 251,046 | +16.3% |
| 2014/12 | 215,800 | +9.8% |
| 2013/12 | 196,561 | +7.2% |
| 2012/12 | 183,381 | +33.6% |
| 2011/12 | 137,296 | - |