| Sold | Grade | Monthly Average |
| Sep 2023 | 2.5 | $34.00 |
| Apr 2016 | 6.0 | $160.00 |
| Apr 2019 | 4.5 | $78.00 |
| Nov 2019 | 4.0 | $47.00 |
| Oct 2019 | 4.0 | $69.00 |
| Mar 2018 | 4.0 | $47.99 |
| Jan 2023 | 3.5 | $40.00 |
| Jul 2019 | 3.5 | $32.00 |
| Feb 2018 | 3.5 | $76.00 |
| Feb 2021 | 2.5 | $44.50 |
| Aug 2020 | 2.5 | $48.00 |
| Jun 2019 | 1.8 | $38.50 |
| Jul 2022 | 1.5 | $28.50 |
| May 2022 | 1.0 | $16.50 |
| Dec 2017 | 1.0 | $22.05 |
| Mar 2013 | 1.0 | $23.10 |
| Dec 2010 | 1.0 | $24.00 |
| May 2022 | 0.5 | $12.50 |
| Jan 2021 | 0.5 | $16.00 |
| Nov 2018 | 0.5 | $11.40 |
| Aug 2010 | 0.1 | $4.80 |