| Sold | Grade | Monthly Average |
| Jun 2015 | 6.0 | $12.00 |
| May 2020 | 5.5 | $32.00 |
| Feb 2024 | 4.0 | $24.00 |
| Jun 2023 | 4.0 | $24.00 |
| Dec 2017 | 4.0 | $16.00 |
| Jul 2013 | 4.0 | $6.00 |
| Sep 2010 | 4.0 | $4.00 |
| Aug 2013 | 2.5 | $6.76 |
| Jun 2013 | 2.5 | $31.85 |
| Jun 2010 | 1.0 | $0.99 |
| Apr 2022 | 0.5 | $2.60 |
| Aug 2017 | 0.5 | $2.00 |