| Sold | Grade | Monthly Average |
| Apr 2021 | 9.4 | $75.00 |
| Mar 2018 | 9.4 | $87.00 |
| Oct 2015 | 9.4 | $54.99 |
| Jan 2011 | 9.4 | $40.00 |
| Jan 2023 | 8.5 | $152.00 |
| Apr 2021 | 8.0 | $64.00 |
| Apr 2011 | 8.0 | $32.00 |
| Jun 2023 | 6.0 | $80.00 |
| Jul 2019 | 6.0 | $55.00 |
| Jun 2015 | 6.0 | $33.00 |
| Dec 2013 | 6.0 | $33.00 |
| Sep 2023 | 5.0 | $56.00 |
| Jan 2021 | 4.0 | $30.00 |
| May 2019 | 4.0 | $39.00 |