| （単位：百万） | 売上原価 | 前年比（％） |
|---|---|---|
| 2024/12 | 39,488 | -2.3% |
| 2023/12 | 40,405 | -7.6% |
| 2022/12 | 43,730 | +7.6% |
| 2021/12 | 40,635 | +17.2% |
| 2020/12 | 34,684 | +25.3% |
| 2019/12 | 27,686 | -28.6% |
| 2018/12 | 38,753 | +37.5% |
| 2017/12 | 28,189 | +70.7% |
| 2016/12 | 16,515 | +75.7% |
| 2015/12 | 9,399 | +188.2% |
| 2014/12 | 3,262 | +31.6% |
| 2013/12 | 2,479 | -3.9% |
| 2012/12 | 2,578 | +8.7% |
| 2011/12 | 2,372 | +31.9% |
| 2010/12 | 1,798 | - |