| Sold | Grade | Monthly Average |
| Nov 2025 | 3.5 | $50.00 |
| Feb 2017 | 6.5 | $99.00 |
| Jun 2021 | 4.5 | $90.00 |
| Aug 2019 | 4.0 | $55.00 |
| Nov 2009 | 4.0 | $58.90 |
| Apr 2024 | 3.0 | $36.00 |
| Sep 2012 | 3.0 | $27.00 |
| Apr 2023 | 2.5 | $22.00 |
| Dec 2021 | 2.5 | $42.00 |
| Jan 2013 | 2.5 | $15.97 |
| Oct 2012 | 2.5 | $40.00 |
| May 2017 | 2.0 | $32.78 |
| Jan 2014 | 2.0 | $34.50 |
| May 2022 | 1.8 | $42.00 |
| Jun 2016 | 1.8 | $32.50 |
| Jun 2015 | 1.8 | $35.50 |
| Jul 2012 | 0.1 | $4.00 |