| Sold | Grade | Monthly Average |
| Jan 2024 | 4.0 | $6.60 |
| Dec 2013 | 7.0 | $10.50 |
| Aug 2023 | 6.0 | $9.00 |
| Jan 2021 | 6.0 | $9.00 |
| Nov 2018 | 6.0 | $9.00 |
| Aug 2016 | 6.0 | $9.00 |
| Aug 2012 | 4.5 | $3.80 |
| Jul 2020 | 4.0 | $6.60 |
| Aug 2019 | 4.0 | $6.00 |
| Dec 2014 | 3.5 | $5.20 |
| Aug 2016 | 3.0 | $4.49 |
| Apr 2010 | 3.0 | $2.49 |
| Jul 2021 | 2.5 | $3.70 |
| Feb 2023 | 2.0 | $2.85 |
| Mar 2020 | 2.0 | $3.00 |
| Apr 2018 | 2.0 | $3.00 |
| Feb 2012 | 2.0 | $1.70 |
| May 2019 | 1.8 | $2.99 |
| Aug 2014 | 1.8 | $2.70 |
| Jul 2014 | 1.8 | $2.70 |