| Sold | Grade | Monthly Average |
| Sep 2024 | 9.0 | $26.00 |
| Oct 2024 | 6.0 | $27.00 |
| May 2022 | 9.4 | $95.00 |
| Apr 2021 | 9.4 | $99.95 |
| Sep 2020 | 9.4 | $89.96 |
| May 2018 | 9.4 | $99.95 |
| Jan 2012 | 9.4 | $44.80 |
| Jun 2011 | 9.4 | $40.00 |
| Jun 2016 | 8.5 | $117.50 |
| Jul 2023 | 8.0 | $61.00 |
| Jul 2012 | 8.0 | $37.95 |
| Dec 2023 | 7.5 | $79.00 |
| May 2019 | 7.5 | $31.00 |
| Mar 2013 | 6.0 | $24.00 |
| Nov 2012 | 6.0 | $24.00 |
| Apr 2024 | 5.0 | $27.00 |
| Aug 2023 | 1.0 | $9.49 |