| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q3 | 256,919 | -2,731 |
| 2014 | Q2 | 259,650 | +6,437 |
| 2014 | Q1 | 253,213 | +121,631 |
| 2013 | Q4 | 131,582 | +6,337 |
| 2013 | Q3 | 125,245 | -10,100 |
| 2013 | Q2 | 135,345 | -6,741 |
| 2013 | Q1 | 142,086 | -150,724 |
| 2012 | Q4 | 292,810 | -34,671 |
| 2012 | Q3 | 327,481 | -3,837 |
| 2012 | Q2 | 331,318 | -46,453 |
| 2012 | Q1 | 377,771 |