| Sold | Grade | Monthly Average |
| Jan 2018 | 6.5 | $416.00 |
| Sep 2012 | 4.5 | $31.56 |
| Sep 2017 | 4.0 | $58.00 |
| Oct 2014 | 4.0 | $57.00 |
| Nov 2023 | 3.5 | $51.00 |
| Mar 2022 | 3.5 | $95.00 |
| Nov 2023 | 3.0 | $28.00 |
| Oct 2021 | 3.0 | $38.00 |
| Mar 2015 | 2.5 | $42.30 |
| Oct 2021 | 2.0 | $46.00 |
| May 2017 | 2.0 | $28.00 |
| May 2020 | 0.5 | $25.00 |
| May 2014 | 0.5 | $7.80 |
| Aug 2012 | 0.5 | $12.00 |