| Sold | Grade | Monthly Average |
| Feb 2020 | 9.4 | $35.96 |
| Oct 2019 | 9.4 | $39.95 |
| Jun 2019 | 9.4 | $39.95 |
| Mar 2014 | 9.4 | $39.95 |
| Feb 2013 | 9.4 | $34.99 |
| Oct 2012 | 9.4 | $34.99 |
| Feb 2012 | 9.4 | $30.00 |
| Nov 2011 | 9.4 | $30.00 |
| Sep 2011 | 9.4 | $40.00 |
| Mar 2011 | 9.4 | $40.00 |
| Jan 2011 | 9.4 | $39.99 |
| Dec 2010 | 9.4 | $39.99 |
| Nov 2010 | 9.4 | $39.99 |
| Apr 2018 | 8.0 | $36.00 |
| Dec 2023 | 6.5 | $56.00 |
| Apr 2023 | 6.0 | $28.80 |
| Oct 2022 | 6.0 | $25.20 |
| Apr 2025 | 4.0 | $34.00 |
| May 2024 | 4.0 | $24.00 |
| Mar 2020 | 4.0 | $15.99 |