| Sold | Grade | Monthly Average |
| Feb 2013 | 5.0 | $15.70 |
| Jul 2021 | 4.5 | $10.50 |
| Jan 2021 | 4.5 | $10.50 |
| Jul 2024 | 4.0 | $6.94 |
| Oct 2022 | 4.0 | $9.60 |
| Jan 2014 | 4.0 | $7.20 |
| Aug 2022 | 3.5 | $6.70 |
| Jan 2022 | 3.5 | $6.70 |
| Aug 2011 | 3.5 | $10.50 |
| Apr 2017 | 2.5 | $3.40 |
| Dec 2019 | 2.0 | $4.80 |
| Jan 2018 | 2.0 | $5.40 |
| May 2017 | 2.0 | $4.80 |
| Aug 2014 | 2.0 | $6.70 |
| Sep 2021 | 1.8 | $3.30 |
| Feb 2019 | 1.8 | $3.80 |
| Dec 2018 | 1.8 | $3.61 |
| Nov 2012 | 1.8 | $3.70 |
| Feb 2012 | 1.5 | $5.40 |
| Nov 2019 | 1.0 | $2.40 |