| Sold | Grade | Monthly Average |
| Oct 2019 | 9.4 | $21.00 |
| Apr 2021 | 8.5 | $16.50 |
| Nov 2019 | 6.0 | $9.00 |
| May 2011 | 6.0 | $6.00 |
| Mar 2020 | 5.5 | $7.49 |
| Jun 2011 | 5.5 | $5.40 |
| Jun 2021 | 4.5 | $6.10 |
| Mar 2021 | 4.0 | $5.22 |
| Dec 2012 | 4.0 | $3.60 |
| Mar 2013 | 3.5 | $3.50 |
| Jan 2013 | 3.5 | $3.20 |
| Jun 2022 | 3.0 | $4.20 |
| Sep 2019 | 3.0 | $3.90 |
| Feb 2020 | 2.0 | $2.57 |
| Jun 2018 | 2.0 | $2.00 |
| Mar 2011 | 2.0 | $2.00 |
| Mar 2019 | 1.8 | $1.70 |