| Sold | Grade | Monthly Average |
| Feb 2017 | 6.5 | $120.00 |
| Apr 2021 | 5.0 | $86.00 |
| Mar 2021 | 4.5 | $74.10 |
| Jan 2020 | 4.5 | $77.00 |
| Aug 2018 | 4.5 | $78.00 |
| May 2013 | 3.0 | $43.50 |
| May 2023 | 2.5 | $51.00 |
| Jun 2023 | 2.0 | $29.00 |
| Nov 2017 | 1.8 | $18.29 |
| Jun 2020 | 1.0 | $17.75 |
| Dec 2013 | 1.0 | $13.95 |
| Oct 2018 | 0.5 | $8.99 |
| Sep 2017 | 0.5 | $4.84 |
| Jul 2017 | 0.5 | $5.10 |
| Sep 2016 | 0.5 | $5.10 |
| Jun 2015 | 0.5 | $9.00 |