| （単位：百万円） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 30,939 | +10.8% |
| 2024/12 | 27,916 | +40.2% |
| 2023/12 | 19,918 | +11.2% |
| 2022/12 | 17,911 | +8.6% |
| 2021/12 | 16,491 | +43.4% |
| 2020/12 | 11,503 | -16.0% |
| 2020/3 | 14,388 | +5.1% |
| 2019/3 | 13,696 | -0.2% |
| 2018/3 | 13,727 | +6.5% |
| 2017/3 | 12,887 | +9.6% |
| 2016/3 | 11,753 | +2.6% |
| 2015/3 | 11,453 | +16.7% |
| 2014/3 | 9,810 | +9.3% |
| 2013/3 | 8,978 | - |