| （単位：百万） | 営業費用 | 前年比（％） |
|---|---|---|
| 2025/12 | 54,236 | +23.8% |
| 2024/12 | 43,824 | +25.2% |
| 2023/12 | 34,998 | -27.3% |
| 2022/12 | 48,131 | +22.6% |
| 2021/12 | 39,266 | +26.1% |
| 2020/12 | 31,130 | -25.5% |
| 2019/12 | 41,809 | +0.6% |
| 2018/12 | 41,562 | -2.9% |
| 2017/12 | 42,807 | +33.9% |
| 2016/12 | 31,979 | +0.1% |
| 2015/12 | 31,932 | -7.3% |
| 2014/12 | 34,441 | +9.2% |
| 2013/12 | 31,553 | +32.6% |
| 2012/12 | 23,794 | - |