| Sold | Grade | Monthly Average |
| Apr 2023 | 8.0 | $8.00 |
| Apr 2021 | 8.0 | $8.00 |
| Aug 2020 | 8.0 | $8.00 |
| Jun 2021 | 7.0 | $7.00 |
| Sep 2023 | 6.0 | $6.00 |
| Apr 2019 | 6.0 | $6.50 |
| Mar 2019 | 6.0 | $6.50 |
| Dec 2017 | 6.0 | $6.00 |
| Dec 2016 | 6.0 | $6.00 |
| Oct 2012 | 6.0 | $1.00 |
| Mar 2011 | 6.0 | $1.40 |
| Aug 2010 | 6.0 | $1.80 |
| Jan 2008 | 6.0 | $1.60 |
| Apr 2016 | 5.5 | $3.30 |
| Dec 2015 | 5.0 | $1.80 |
| Nov 2015 | 4.5 | $1.60 |
| Jan 2023 | 4.0 | $4.70 |
| Feb 2015 | 4.0 | $2.40 |
| Jan 2015 | 4.0 | $1.50 |
| Jul 2019 | 3.5 | $3.49 |