| Sold | Grade | Monthly Average |
| Jul 2021 | 4.5 | $40.00 |
| Mar 2021 | 4.0 | $39.00 |
| Aug 2025 | 3.0 | $35.00 |
| May 2024 | 3.0 | $27.00 |
| Nov 2024 | 2.0 | $9.80 |
| Apr 2020 | 2.0 | $20.00 |
| Apr 2024 | 1.8 | $14.00 |
| May 2014 | 1.8 | $6.00 |
| Aug 2020 | 1.5 | $7.30 |
| Jun 2014 | 1.5 | $5.30 |
| Sep 2025 | 1.0 | $23.00 |
| Apr 2010 | 1.0 | $2.00 |
| Jul 2011 | 0.5 | $1.10 |