| Sold | Grade | Monthly Average |
| Dec 2023 | CGC 4.0 | $21.00 |
| Jun 2021 | 4.0 | $2.40 |
| Mar 2018 | 4.0 | $3.20 |
| Dec 2015 | 4.0 | $3.20 |
| Aug 2022 | 3.0 | $2.40 |
| Mar 2020 | 3.0 | $2.00 |
| Feb 2017 | 3.0 | $1.70 |
| May 2011 | 3.0 | $2.20 |
| Sep 2017 | 2.5 | $1.70 |
| Apr 2010 | 2.5 | $1.90 |
| Oct 2021 | 2.0 | $2.00 |
| Oct 2017 | 2.0 | $1.70 |
| Aug 2014 | 2.0 | $1.80 |
| May 2012 | 2.0 | $2.00 |
| Nov 2017 | 1.8 | $1.70 |
| Mar 2013 | 1.0 | $1.10 |
| Jan 2013 | 1.0 | $1.05 |