| Sold | Grade | Monthly Average |
| May 2024 | 3.0 | $12.50 |
| Jun 2024 | 2.5 | $9.50 |
| Feb 2012 | 5.0 | $18.00 |
| Dec 2015 | 4.5 | $13.00 |
| Nov 2015 | 4.5 | $13.00 |
| Aug 2021 | 4.0 | $27.00 |
| Mar 2021 | 4.0 | $27.00 |
| Sep 2018 | 3.5 | $21.50 |
| Aug 2013 | 3.5 | $7.00 |
| May 2011 | 3.0 | $13.00 |
| Oct 2023 | 2.5 | $7.80 |
| Nov 2017 | 2.5 | $8.50 |
| Aug 2017 | 2.5 | $10.80 |
| Feb 2010 | 2.5 | $13.00 |
| Jun 2012 | 2.0 | $7.50 |
| Jun 2015 | 1.8 | $3.00 |
| Jun 2010 | 1.5 | $6.90 |
| Jul 2018 | 1.0 | $6.60 |
| Jul 2021 | 0.5 | $2.80 |
| Aug 2013 | 0.5 | $3.49 |
| Sep 2010 | 0.5 | $2.70 |