| （単位：百万） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 2,418 | -20.9% |
| 2023/12 | 3,055 | +6.9% |
| 2022/12 | 2,858 | -12.7% |
| 2021/12 | 3,276 | -5.3% |
| 2020/12 | 3,458 | +32.3% |
| 2019/12 | 2,614 | +25.5% |
| 2018/12 | 2,083 | +159.9% |
| 2017/12 | 801 | +144.8% |
| 2016/12 | 327 | +79.5% |
| 2015/12 | 182 | +4.6% |
| 2014/12 | 174 | +10.2% |
| 2013/12 | 158 | -32.2% |
| 2012/12 | 233 | -20.4% |
| 2011/12 | 293 | +26.3% |
| 2010/12 | 232 | - |