| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/6 | 44,665 | -12.0% |
| 2023/6 | 50,777 | +8.4% |
| 2022/6 | 46,849 | -5.5% |
| 2021/6 | 49,569 | -4.8% |
| 2020/6 | 52,088 | -8.5% |
| 2019/6 | 56,914 | -6.4% |
| 2018/6 | 60,809 | -11.5% |
| 2017/6 | 68,697 | +4.7% |
| 2016/6 | 65,622 | +16.0% |
| 2015/6 | 56,587 | +17.8% |
| 2014/6 | 48,040 | +19.8% |
| 2013/6 | 40,095 | +31.6% |
| 2012/6 | 30,459 | +26.3% |
| 2011/6 | 24,124 | - |