| Sold | Grade | Monthly Average |
| May 2025 | 9.4 | $61.00 |
| Dec 2017 | 9.4 | $48.00 |
| Jul 2016 | 9.4 | $19.20 |
| Jun 2016 | 9.4 | $19.20 |
| Dec 2015 | 9.4 | $19.20 |
| Nov 2011 | 9.4 | $24.00 |
| Jan 2010 | 9.4 | $48.00 |
| Jun 2018 | 9.2 | $59.00 |
| May 2016 | 9.0 | $16.00 |
| Apr 2016 | 8.5 | $12.35 |
| Aug 2020 | 7.5 | $22.00 |
| Apr 2020 | 7.5 | $22.00 |
| Jan 2016 | 7.0 | $2.50 |
| Jan 2025 | 6.5 | $16.00 |
| Oct 2021 | 6.0 | $15.00 |
| Oct 2019 | 5.0 | $12.00 |