| Sold | Grade | Monthly Average |
| Mar 2024 | 4.5 | $5.20 |
| Apr 2024 | 3.5 | $4.50 |
| Mar 2024 | 2.0 | $2.50 |
| Mar 2020 | 4.5 | $5.20 |
| May 2022 | 4.0 | $4.80 |
| Sep 2020 | 4.0 | $14.00 |
| Jun 2019 | 4.0 | $17.00 |
| Oct 2017 | 4.0 | $10.26 |
| Nov 2015 | 4.0 | $12.00 |
| Jan 2013 | 4.0 | $15.25 |
| Oct 2012 | 4.0 | $9.20 |
| Nov 2012 | 3.5 | $7.60 |
| Jul 2015 | 2.5 | $6.25 |
| Sep 2020 | 2.0 | $1.90 |
| Dec 2019 | 2.0 | $2.00 |
| Aug 2016 | 2.0 | $4.20 |
| Sep 2015 | 2.0 | $5.30 |
| Jan 2015 | 1.8 | $5.60 |
| Nov 2012 | 1.5 | $3.32 |
| Apr 2014 | 0.5 | $1.90 |
| Jan 2013 | 0.5 | $2.30 |