| （単位：千ドル） | 売上原価 | 前年比（％） |
|---|---|---|
| 2025/5 | 718,800 | +1.9% |
| 2024/5 | 705,100 | -10.3% |
| 2023/5 | 786,400 | +2.7% |
| 2022/5 | 765,500 | +14.9% |
| 2021/5 | 666,500 | -11.3% |
| 2020/5 | 751,000 | -3.7% |
| 2019/5 | 779,900 | +4.7% |
| 2018/5 | 744,600 | -8.6% |
| 2017/5 | 814,500 | +6.8% |
| 2016/5 | 762,300 | +0.5% |
| 2015/5 | 758,500 | -10.3% |
| 2014/5 | 846,000 | +2.0% |
| 2013/5 | 829,600 | -16.1% |
| 2012/5 | 989,200 | +11.7% |
| 2011/5 | 885,900 | - |