Recoverable coal is the coal that is, or can be, extracted from a coal bed during mining. Recoverable Resources of Coal: the sum of measured resources plus indicated resources.
| 日付 | 値 | 変更 , % |
|---|---|---|
| 2022 | 31,450 | 0.00% |
| 2021 | 31,450 | 0.48% |
| 2020 | 31,300 | 5.43% |
| 2019 | 29,687 | 0.00% |
| 2018 | 29,687 | -0.72% |
| 2017 | 29,904 | 5.10% |
| 2016 | 28,452 | 6.83% |
| 2015 | 26,633 | 11.69% |
| 2014 | 23,845 | 3.70% |
| 2013 | 22,995 | 6.42% |
| 2012 | 21,609 | 1.97% |
| 2011 | 21,192 |