| Sold | Grade | Monthly Average |
| Dec 2017 | 5.0 | $43.00 |
| May 2018 | 4.5 | $33.00 |
| Feb 2022 | 3.5 | $95.00 |
| Oct 2023 | 3.0 | $62.00 |
| Jan 2015 | 3.0 | $23.50 |
| Jan 2013 | 3.0 | $20.50 |
| Aug 2020 | 2.5 | $52.00 |
| Apr 2018 | 2.5 | $26.00 |
| May 2020 | 2.0 | $23.00 |
| Oct 2019 | 2.0 | $23.00 |
| Sep 2019 | 2.0 | $23.00 |
| Dec 2017 | 2.0 | $16.50 |
| Oct 2016 | 2.0 | $16.50 |