| （単位：百万） | 売上原価 | 前年比（％） |
|---|---|---|
| 2024/12 | 66,102 | +1.6% |
| 2023/12 | 65,031 | +1.7% |
| 2022/12 | 63,935 | -0.6% |
| 2021/12 | 64,314 | +16.6% |
| 2020/12 | 55,158 | -12.2% |
| 2019/12 | 62,850 | +21.5% |
| 2018/12 | 51,744 | +20.2% |
| 2017/12 | 43,062 | +22.1% |
| 2016/12 | 35,279 | +28.5% |
| 2015/12 | 27,458 | +45.4% |
| 2014/12 | 18,885 | +64.6% |
| 2013/12 | 11,472 | +77.9% |
| 2012/12 | 6,449 | +65.5% |
| 2011/12 | 3,897 | +81.3% |
| 2010/12 | 2,149 | - |