| Sold | Grade | Monthly Average |
| Mar 2012 | 6.0 | $137.00 |
| Dec 2011 | 6.0 | $72.00 |
| Feb 2021 | 4.5 | $100.00 |
| May 2016 | 4.0 | $112.00 |
| Sep 2015 | 4.0 | $46.00 |
| Jun 2025 | 3.0 | $130.00 |
| Nov 2020 | 2.5 | $94.00 |
| Jul 2017 | 2.5 | $36.07 |
| Mar 2024 | 2.0 | $155.00 |
| Nov 2020 | 2.0 | $68.00 |
| May 2021 | 1.5 | $56.00 |
| Jun 2020 | 1.5 | $46.00 |
| Oct 2013 | 1.0 | $35.00 |