| Sold | Grade | Monthly Average |
| Apr 2012 | 9.4 | $24.00 |
| Apr 2014 | 8.5 | $6.12 |
| Jan 2014 | 8.5 | $7.15 |
| Nov 2013 | 8.5 | $6.80 |
| Jun 2013 | 8.5 | $17.00 |
| May 2013 | 8.5 | $17.00 |
| Nov 2014 | 8.0 | $6.90 |
| Jun 2014 | 8.0 | $6.90 |
| Dec 2013 | 8.0 | $6.70 |
| Jul 2013 | 8.0 | $16.00 |
| Oct 2013 | 7.5 | $15.00 |
| Apr 2020 | 7.0 | $8.40 |
| Feb 2020 | 7.0 | $8.40 |
| May 2013 | 7.0 | $2.80 |
| Nov 2014 | 6.0 | $5.20 |
| Sep 2014 | 6.0 | $4.80 |
| Aug 2014 | 6.0 | $5.20 |
| Feb 2021 | 4.0 | $4.80 |
| Jun 2014 | 4.0 | $3.45 |