| Sold | Grade | Monthly Average |
| Mar 2024 | 3.5 | $99.00 |
| Jun 2012 | 5.0 | $31.99 |
| May 2020 | 4.0 | $75.00 |
| Feb 2018 | 3.5 | $71.00 |
| Jun 2020 | 3.0 | $62.00 |
| May 2019 | 2.5 | $52.00 |
| Apr 2019 | 2.5 | $67.00 |
| Feb 2017 | 2.5 | $50.00 |
| Mar 2015 | 2.5 | $29.99 |
| Aug 2015 | 2.0 | $31.75 |
| Jun 2013 | 1.8 | $24.20 |
| May 2013 | 1.8 | $20.90 |
| Apr 2011 | 1.5 | $18.75 |