| Sold | Grade | Monthly Average |
| Oct 2023 | 4.0 | $40.00 |
| Sep 2019 | 9.4 | $99.95 |
| Apr 2011 | 9.4 | $40.00 |
| Nov 2009 | 9.4 | $23.00 |
| Aug 2006 | 9.4 | $24.00 |
| Sep 2021 | 8.0 | $79.00 |
| Jan 2014 | 8.0 | $40.00 |
| Dec 2013 | 8.0 | $43.00 |
| Nov 2009 | 8.0 | $17.10 |
| Mar 2022 | 7.5 | $105.00 |
| Apr 2023 | 6.0 | $59.00 |
| Nov 2021 | 6.0 | $66.00 |
| Nov 2019 | 6.0 | $70.00 |
| Dec 2017 | 6.0 | $59.00 |
| Dec 2014 | 6.0 | $33.50 |
| Nov 2013 | 6.0 | $30.00 |
| Aug 2013 | 6.0 | $30.00 |
| Dec 2012 | 6.0 | $30.00 |
| Aug 2021 | 4.0 | $40.00 |
| Apr 2012 | 4.0 | $15.20 |
| Aug 2011 | 2.0 | $8.00 |