| Sold | Grade | Monthly Average |
| Jul 2024 | 3.5 | $8.50 |
| May 2019 | 7.5 | $7.49 |
| May 2020 | 7.0 | $7.00 |
| Jul 2021 | 6.0 | $4.80 |
| Jun 2021 | 6.0 | $4.80 |
| Jun 2019 | 6.0 | $6.00 |
| Feb 2017 | 5.0 | $2.40 |
| Aug 2021 | 4.5 | $3.60 |
| May 2024 | 4.0 | $12.00 |
| Oct 2019 | 4.0 | $4.40 |
| Mar 2011 | 4.0 | $1.90 |
| Mar 2010 | 4.0 | $1.90 |
| Feb 2010 | 4.0 | $1.90 |
| Dec 2009 | 4.0 | $2.40 |
| Jul 2009 | 4.0 | $1.90 |
| Sep 2008 | 4.0 | $1.81 |
| Mar 2006 | 4.0 | $1.80 |
| Sep 2021 | 2.5 | $2.00 |