| Sold | Grade | Monthly Average |
| Nov 2025 | 1.5 | $23.00 |
| Feb 2010 | 4.0 | $35.50 |
| Nov 2023 | 3.0 | $19.80 |
| Nov 2014 | 2.5 | $34.50 |
| Oct 2012 | 2.5 | $15.50 |
| Nov 2012 | 2.0 | $21.40 |
| Jan 2011 | 2.0 | $19.00 |
| Aug 2024 | 1.8 | $24.00 |
| Dec 2013 | 1.8 | $18.05 |
| May 2013 | 1.8 | $19.00 |
| Mar 2013 | 1.8 | $20.90 |
| May 2018 | 1.5 | $22.50 |
| Jan 2024 | 1.0 | $8.00 |