| （単位：百万円） | 営業費用 | 前年比（％） |
|---|---|---|
| 2024/12 | 308,364 | +17.7% |
| 2023/12 | 262,076 | +11.7% |
| 2022/12 | 234,717 | +12.7% |
| 2021/12 | 208,344 | +44.8% |
| 2020/12 | 143,862 | -21.3% |
| 2020/3 | 191,312 | +4.6% |
| 2019/3 | 182,899 | +10.0% |
| 2018/3 | 166,294 | +10.8% |
| 2017/3 | 150,149 | -1.9% |
| 2016/3 | 153,041 | +12.9% |
| 2015/3 | 135,498 | +6.9% |
| 2014/3 | 126,747 | +9.2% |
| 2013/3 | 116,105 | - |