| Sold | Grade | Monthly Average |
| Jan 2024 | 8.5 | $112.00 |
| Apr 2016 | 9.4 | $99.95 |
| Oct 2013 | 9.4 | $49.99 |
| Aug 2012 | 9.4 | $40.00 |
| Dec 2009 | 9.4 | $40.00 |
| Jan 2017 | 8.5 | $75.00 |
| Sep 2022 | 8.0 | $79.00 |
| Dec 2017 | 8.0 | $79.00 |
| Mar 2013 | 8.0 | $40.00 |
| Feb 2017 | 7.5 | $90.00 |
| Sep 2022 | 6.0 | $70.00 |
| Apr 2021 | 6.0 | $53.10 |
| Dec 2020 | 6.0 | $59.00 |
| May 2014 | 6.0 | $30.00 |
| Dec 2010 | 6.0 | $24.00 |
| Jun 2010 | 6.0 | $24.00 |
| Mar 2021 | 4.0 | $40.00 |
| May 2018 | 2.0 | $19.99 |