| Sold | Grade | Monthly Average |
| Sep 2012 | 5.5 | $79.89 |
| Aug 2018 | 5.0 | $169.95 |
| Jan 2024 | 3.0 | $117.00 |
| May 2021 | 3.0 | $130.00 |
| Jan 2021 | 3.0 | $60.00 |
| Apr 2022 | 2.5 | $66.00 |
| Sep 2023 | 2.0 | $110.00 |
| May 2016 | 1.5 | $65.00 |
| Aug 2015 | 1.5 | $19.00 |
| Jul 2014 | 1.0 | $13.50 |
| Jan 2014 | 1.0 | $13.50 |