| Sold | Grade | Monthly Average |
| Jan 2019 | 9.4 | $49.46 |
| Sep 2017 | 9.4 | $49.46 |
| May 2017 | 9.4 | $49.46 |
| May 2015 | 9.4 | $54.95 |
| Apr 2015 | 9.4 | $54.95 |
| Feb 2015 | 9.4 | $61.00 |
| Jan 2015 | 9.4 | $54.95 |
| Aug 2014 | 9.4 | $54.95 |
| Jul 2014 | 9.4 | $54.95 |
| Sep 2022 | 8.0 | $59.00 |
| Oct 2020 | 8.0 | $39.60 |
| Jan 2019 | 8.0 | $39.60 |
| Aug 2017 | 8.0 | $44.00 |
| Nov 2018 | 6.0 | $42.00 |