| Sold | Grade | Monthly Average |
| Apr 2010 | 9.8 | $90.00 |
| May 2017 | 9.4 | $105.41 |
| Mar 2011 | 9.4 | $48.00 |
| Jul 2010 | 9.4 | $60.00 |
| Sep 2020 | 9.2 | $60.00 |
| Apr 2014 | 9.2 | $28.99 |
| Oct 2013 | 9.2 | $92.50 |
| Apr 2021 | 9.0 | $119.95 |
| Jun 2022 | 8.5 | $89.95 |
| Aug 2020 | 8.5 | $51.00 |
| May 2017 | 8.5 | $43.00 |
| Jul 2020 | 8.0 | $36.00 |
| Feb 2018 | 8.0 | $28.00 |
| Jul 2016 | 8.0 | $40.00 |
| May 2012 | 8.0 | $38.00 |
| Jan 2019 | 7.5 | $66.45 |
| Nov 2018 | 7.5 | $89.56 |
| Sep 2018 | 7.5 | $25.00 |
| Jun 2018 | 7.5 | $26.50 |
| May 2022 | 6.0 | $35.00 |