| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2015 | Q2 | 31,573 | +3,396 |
| 2015 | Q1 | 28,177 | +56 |
| 2014 | Q4 | 28,121 | -2,322 |
| 2014 | Q3 | 30,443 | +4,503 |
| 2014 | Q2 | 25,940 | +5,774 |
| 2014 | Q1 | 20,166 | +7,328 |
| 2013 | Q4 | 12,838 | +3,265 |
| 2013 | Q3 | 9,573 | +3,539 |
| 2013 | Q2 | 6,034 | +205 |
| 2013 | Q1 | 5,829 | +723 |
| 2012 | Q4 | 5,106 | -162 |
| 2012 | Q3 | 5,268 | +152 |
| 2012 | Q2 | 5,116 | -1,541 |
| 2012 | Q1 | 6,657 |