| Sold | Grade | Monthly Average |
| Sep 2015 | 5.0 | $51.00 |
| Jun 2019 | 4.0 | $50.00 |
| Nov 2017 | 4.0 | $30.00 |
| Dec 2012 | 3.5 | $34.55 |
| Jun 2025 | 2.5 | $37.00 |
| Aug 2020 | 2.5 | $35.50 |
| Jul 2019 | 2.0 | $38.00 |
| Apr 2018 | 1.8 | $35.00 |
| Nov 2014 | 1.8 | $20.00 |
| Oct 2019 | 1.5 | $36.00 |
| Dec 2011 | 1.5 | $29.50 |
| Feb 2023 | 1.0 | $28.45 |
| Aug 2011 | 1.0 | $6.25 |
| Oct 2012 | 0.5 | $5.68 |
| May 2011 | 0.5 | $10.25 |