| Sold | Grade | Monthly Average |
| Sep 2011 | 9.4 | $1.30 |
| Apr 2019 | 8.0 | $3.20 |
| Aug 2018 | 8.0 | $3.20 |
| Mar 2018 | 8.0 | $3.20 |
| Dec 2017 | 8.0 | $3.20 |
| Feb 2014 | 8.0 | $4.00 |
| Apr 2020 | 6.0 | $2.40 |
| Jan 2020 | 6.0 | $2.40 |
| Jun 2019 | 6.0 | $2.16 |
| Jan 2019 | 6.0 | $2.40 |
| Mar 2017 | 6.0 | $3.90 |
| Jun 2016 | 6.0 | $3.60 |
| Dec 2012 | 6.0 | $0.80 |
| May 2016 | 4.0 | $2.40 |