| Sold | Grade | Monthly Average |
| Feb 2014 | 9.4 | $22.50 |
| Jul 2013 | 9.4 | $23.00 |
| May 2023 | 8.0 | $67.00 |
| Aug 2019 | 8.0 | $55.00 |
| Jun 2019 | 8.0 | $55.00 |
| Jan 2013 | 8.0 | $16.00 |
| Aug 2012 | 8.0 | $19.05 |
| May 2022 | 6.5 | $71.00 |
| Aug 2022 | 6.0 | $50.00 |
| Sep 2020 | 6.0 | $42.00 |
| Jan 2018 | 6.0 | $50.00 |
| Jul 2021 | 4.0 | $32.00 |
| Oct 2020 | 4.0 | $28.00 |