| （単位：百万円） | 営業費用 | 前年比（％） |
|---|---|---|
| 2026/3 | 16,596 | -30.8% |
| 2025/3 | 23,974 | +7.9% |
| 2024/3 | 22,218 | +4.1% |
| 2023/3 | 21,349 | +11.5% |
| 2022/3 | 19,149 | +4.5% |
| 2021/3 | 18,327 | -10.3% |
| 2020/3 | 20,434 | -1.0% |
| 2019/3 | 20,631 | +9.3% |
| 2018/3 | 18,875 | +2.4% |
| 2017/3 | 18,441 | -3.4% |
| 2016/3 | 19,095 | -0.8% |
| 2015/3 | 19,258 | -2.1% |
| 2014/3 | 19,662 | +10.7% |
| 2013/3 | 17,762 | - |