| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2015 | Q2 | 64,045 | -9,100 |
| 2015 | Q1 | 73,145 | +12,575 |
| 2014 | Q4 | 60,570 | +3,900 |
| 2014 | Q3 | 56,670 | +9,366 |
| 2014 | Q2 | 47,304 | +7,573 |
| 2014 | Q1 | 39,731 | +17,231 |
| 2013 | Q4 | 22,500 | -2,000 |
| 2013 | Q3 | 24,500 | |
| 2013 | Q2 | 24,500 | |
| 2013 | Q1 | 24,500 | -10,500 |
| 2012 | Q4 | 35,000 | |
| 2012 | Q3 | 35,000 | +5,000 |
| 2012 | Q2 | 30,000 | -20,200 |
| 2012 | Q1 | 50,200 | |
| 2011 | Q4 | 50,200 | |
| 2011 | Q3 | 50,200 | |
| 2011 | Q2 | 50,200 | |
| 2011 | Q1 | 50,200 |