| （単位：百万円） | 営業費用 | 前年比（％） |
|---|---|---|
| 2026/3 | 20,098 | -16.3% |
| 2025/3 | 24,016 | +2.5% |
| 2024/3 | 23,430 | +7.8% |
| 2023/3 | 21,728 | +4.8% |
| 2022/3 | 20,723 | +3.5% |
| 2021/3 | 20,015 | -0.2% |
| 2020/3 | 20,057 | +5.2% |
| 2019/3 | 19,065 | +10.9% |
| 2018/3 | 17,188 | +7.8% |
| 2017/3 | 15,945 | +9.8% |
| 2016/3 | 14,528 | +12.3% |
| 2015/3 | 12,934 | +10.1% |
| 2014/3 | 11,750 | +1.5% |
| 2013/3 | 11,575 | - |