| （単位：千ドル） | 売上原価 | 前年比（％） |
|---|---|---|
| 2024/5 | 386,733 | -16.4% |
| 2023/5 | 462,501 | -5.3% |
| 2022/5 | 488,376 | +25.8% |
| 2021/5 | 388,112 | -9.3% |
| 2020/5 | 427,870 | -4.2% |
| 2019/5 | 446,560 | +9.4% |
| 2018/5 | 408,074 | +12.7% |
| 2017/5 | 362,086 | -1.2% |
| 2016/5 | 366,355 | +1.1% |
| 2015/5 | 362,227 | +3.1% |
| 2014/5 | 351,359 | +2.7% |
| 2013/5 | 342,040 | -3.0% |
| 2012/5 | 352,524 | +5.2% |
| 2011/5 | 335,071 | - |