| Sold | Grade | Monthly Average |
| Dec 2020 | 5.5 | $489.95 |
| Jun 2017 | 5.5 | $236.55 |
| Apr 2022 | 3.5 | $293.00 |
| Oct 2022 | 2.5 | $170.00 |
| May 2020 | 2.5 | $131.00 |
| Sep 2013 | 1.8 | $35.00 |
| Oct 2021 | 1.0 | $120.00 |
| Jul 2021 | 1.0 | $150.00 |
| Sep 2017 | 1.0 | $150.00 |
| May 2021 | 0.5 | $108.00 |
| Oct 2016 | 0.3 | $50.00 |
| Aug 2016 | 0.3 | $11.50 |