| Sold | Grade | Monthly Average |
| Sep 2023 | 9.2 | $33.00 |
| Apr 2024 | 5.0 | $26.00 |
| May 2022 | 9.4 | $75.00 |
| Nov 2013 | 9.4 | $54.99 |
| Aug 2012 | 9.4 | $40.00 |
| Feb 2011 | 9.4 | $40.00 |
| Jan 2010 | 9.4 | $40.00 |
| Mar 2009 | 9.4 | $33.00 |
| Jul 2007 | 9.4 | $54.00 |
| Sep 2020 | 8.0 | $63.00 |
| May 2012 | 8.0 | $32.00 |
| Jun 2011 | 8.0 | $32.00 |
| Sep 2009 | 8.0 | $23.85 |
| Apr 2007 | 8.0 | $31.68 |
| Aug 2023 | 6.0 | $37.00 |
| Jul 2023 | 6.0 | $37.00 |
| Feb 2023 | 6.0 | $45.00 |
| Nov 2021 | 6.0 | $27.00 |
| Jul 2016 | 6.0 | $127.50 |
| May 2009 | 6.0 | $17.78 |
| Apr 2007 | 6.0 | $23.76 |