| Sold | Grade | Monthly Average |
| May 2010 | 9.4 | $36.00 |
| Nov 2009 | 9.4 | $33.00 |
| Jul 2009 | 9.4 | $29.70 |
| May 2009 | 9.4 | $33.00 |
| Aug 2023 | 8.5 | $64.00 |
| Dec 2017 | 8.0 | $57.00 |
| Feb 2011 | 8.0 | $32.00 |
| Apr 2021 | 6.5 | $65.00 |
| Apr 2021 | 6.0 | $33.00 |
| Jul 2019 | 6.0 | $43.00 |
| Feb 2012 | 6.0 | $24.00 |
| May 2023 | 4.5 | $31.00 |
| Jun 2022 | 4.0 | $70.00 |
| Jan 2018 | 2.0 | $11.00 |