| （単位：百万） | 営業費用 | 前年比（％） |
|---|---|---|
| 2024/12 | 111,855 | -0.8% |
| 2023/12 | 112,742 | +4.6% |
| 2022/12 | 107,764 | -5.4% |
| 2021/12 | 113,975 | +22.9% |
| 2020/12 | 92,734 | -8.3% |
| 2019/12 | 101,106 | +16.6% |
| 2018/12 | 86,747 | +25.5% |
| 2017/12 | 69,118 | +14.2% |
| 2016/12 | 60,500 | +10.6% |
| 2015/12 | 54,710 | +50.9% |
| 2014/12 | 36,249 | +74.7% |
| 2013/12 | 20,752 | +84.4% |
| 2012/12 | 11,255 | +62.5% |
| 2011/12 | 6,924 | +75.0% |
| 2010/12 | 3,956 | - |