| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q3 | 10,484 | -375 |
| 2014 | Q2 | 10,859 | +3,259 |
| 2014 | Q1 | 7,600 | +244 |
| 2013 | Q4 | 7,356 | -863 |
| 2013 | Q3 | 8,219 | +377 |
| 2013 | Q2 | 7,842 | -4,139 |
| 2013 | Q1 | 11,981 | -11,137 |
| 2012 | Q4 | 23,118 | +2,831 |
| 2012 | Q3 | 20,287 | +6,641 |
| 2012 | Q2 | 13,646 | -10,950 |
| 2012 | Q1 | 24,596 | +10,305 |
| 2011 | Q4 | 14,291 |