| Sold | Grade | Monthly Average |
| Jun 2024 | 5.5 | $8.10 |
| Apr 2024 | 4.0 | $6.00 |
| Sep 2020 | 7.5 | $12.35 |
| Aug 2022 | 7.0 | $14.50 |
| Sep 2022 | 6.0 | $9.00 |
| May 2023 | 4.0 | $6.00 |
| Jul 2019 | 4.0 | $6.00 |
| Oct 2013 | 4.0 | $3.80 |
| Apr 2013 | 4.0 | $4.00 |
| Dec 2017 | 3.5 | $4.32 |
| Apr 2014 | 3.5 | $4.80 |
| Apr 2016 | 3.0 | $5.25 |
| Mar 2019 | 2.0 | $3.00 |
| Nov 2009 | 2.0 | $1.49 |
| Jul 2008 | 2.0 | $1.90 |
| Jun 2008 | 2.0 | $1.70 |
| Jan 2005 | 2.0 | $2.10 |