| Sold | Grade | Monthly Average |
| Jan 2013 | 9.4 | $3.30 |
| Aug 2018 | 8.0 | $4.40 |
| Nov 2017 | 8.0 | $5.25 |
| Jul 2017 | 8.0 | $4.90 |
| May 2017 | 8.0 | $3.40 |
| Dec 2013 | 8.0 | $7.00 |
| Jul 2013 | 8.0 | $7.05 |
| Jun 2011 | 8.0 | $3.20 |
| Jan 2011 | 8.0 | $2.99 |
| Sep 2025 | 7.5 | $15.00 |
| Nov 2023 | 7.5 | $13.50 |
| Jan 2020 | 7.5 | $7.49 |
| Nov 2025 | 6.0 | $12.00 |
| Jul 2023 | 6.0 | $12.00 |
| Oct 2021 | 6.0 | $12.00 |
| Aug 2019 | 6.0 | $6.00 |
| Dec 2015 | 6.0 | $3.30 |
| Feb 2013 | 6.0 | $1.80 |
| Apr 2011 | 6.0 | $2.40 |
| Mar 2019 | 4.0 | $2.00 |
| Nov 2010 | 4.0 | $1.60 |
| Jun 2018 | 2.0 | $1.53 |