| Sold | Grade | Monthly Average |
| Aug 2017 | 7.0 | $24.00 |
| May 2025 | 6.5 | $33.00 |
| Jul 2023 | 6.5 | $27.00 |
| Feb 2014 | 4.5 | $9.50 |
| Nov 2023 | 4.0 | $5.76 |
| Nov 2021 | 4.0 | $5.76 |
| Apr 2018 | 4.0 | $8.75 |
| May 2011 | 4.0 | $8.00 |
| Apr 2010 | 4.0 | $8.00 |
| Dec 2010 | 3.5 | $7.00 |
| Aug 2021 | 3.0 | $6.10 |
| Jan 2020 | 3.0 | $6.10 |
| Jun 2011 | 2.5 | $5.20 |
| May 2023 | 2.0 | $3.20 |
| Feb 2021 | 2.0 | $4.40 |
| Apr 2012 | 2.0 | $4.40 |
| Apr 2011 | 2.0 | $4.40 |
| May 2017 | 1.8 | $3.80 |
| Jun 2017 | 1.5 | $3.30 |
| Feb 2025 | 0.5 | $3.00 |
| Jul 2016 | 0.5 | $1.35 |