| Sold | Grade | Monthly Average |
| Jul 2010 | 4.5 | $45.00 |
| May 2019 | 4.0 | $42.00 |
| Jul 2020 | 3.5 | $51.00 |
| Apr 2025 | 3.0 | $38.00 |
| Mar 2025 | 3.0 | $30.00 |
| Mar 2021 | 3.0 | $50.00 |
| Jan 2019 | 3.0 | $53.00 |
| May 2022 | 2.0 | $18.00 |
| Jun 2018 | 2.0 | $35.00 |
| Dec 2016 | 2.0 | $11.17 |
| Oct 2013 | 2.0 | $17.25 |
| Sep 2022 | 1.8 | $16.00 |
| May 2022 | 1.8 | $18.00 |
| Mar 2022 | 1.8 | $22.00 |
| Nov 2022 | 1.5 | $11.00 |
| Jun 2014 | 1.5 | $12.90 |
| Sep 2022 | 1.0 | $18.00 |
| Feb 2012 | 1.0 | $17.60 |
| Dec 2023 | 0.5 | $9.90 |
| Dec 2017 | 0.5 | $5.70 |
| Sep 2017 | 0.5 | $6.00 |