| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 2023/12 | 320,492 | +4.1% |
| 2022/12 | 307,959 | +2.5% |
| 2021/12 | 300,405 | -0.7% |
| 2020/12 | 302,430 | +5.7% |
| 2019/12 | 286,170 | +8.8% |
| 2018/12 | 262,969 | +6.3% |
| 2017/12 | 247,430 | +10.2% |
| 2016/12 | 224,578 | +15.6% |
| 2015/12 | 194,259 | +15.2% |
| 2014/12 | 168,601 | +10.1% |
| 2013/12 | 153,079 | +13.7% |
| 2012/12 | 134,614 | +30.2% |
| 2011/12 | 103,409 | +7.6% |
| 2010/12 | 96,093 | - |