| Sold | Grade | Monthly Average |
| Sep 2018 | 9.4 | $74.95 |
| Jun 2017 | 9.4 | $89.00 |
| Mar 2016 | 9.4 | $74.95 |
| Dec 2013 | 9.4 | $60.00 |
| Nov 2013 | 9.4 | $58.50 |
| Aug 2013 | 9.4 | $54.99 |
| Jul 2013 | 9.4 | $57.00 |
| May 2013 | 9.4 | $49.99 |
| Apr 2013 | 9.4 | $49.99 |
| Mar 2013 | 9.4 | $49.99 |
| Oct 2025 | 7.5 | $105.00 |
| Nov 2022 | 6.0 | $45.00 |
| Jun 2018 | 6.0 | $45.00 |