| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2014 | Q3 | 29,205 | -1,022 |
| 2014 | Q2 | 30,227 | +1,909 |
| 2014 | Q1 | 28,318 | +910 |
| 2013 | Q4 | 27,408 | -3,215 |
| 2013 | Q3 | 30,623 | +2,955 |
| 2013 | Q2 | 27,668 | -18,693 |
| 2013 | Q1 | 46,361 | -42,034 |
| 2012 | Q4 | 88,395 | +9,968 |
| 2012 | Q3 | 78,427 | +23,982 |
| 2012 | Q2 | 54,445 | -43,689 |
| 2012 | Q1 | 98,134 | +41,064 |
| 2011 | Q4 | 57,070 |