| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2017 | Q2 | 98,038 | +2,319 |
| 2017 | Q1 | 95,719 | +4,733 |
| 2016 | Q4 | 90,986 | -10,530 |
| 2016 | Q3 | 101,516 | +12,523 |
| 2016 | Q2 | 88,993 | +23,482 |
| 2016 | Q1 | 65,511 | +4,098 |
| 2015 | Q4 | 61,413 | -6,993 |
| 2015 | Q3 | 68,406 | -4,557 |
| 2015 | Q2 | 72,963 | -7,832 |
| 2015 | Q1 | 80,795 | +20,839 |
| 2014 | Q4 | 59,956 | +5,035 |
| 2014 | Q3 | 54,921 | -1,808 |
| 2014 | Q2 | 56,729 | +3,288 |
| 2014 | Q1 | 53,441 | +7,028 |
| 2013 | Q4 | 46,413 | -1,466 |
| 2013 | Q3 | 47,879 | -5,143 |
| 2013 | Q2 | 53,022 | +5,863 |
| 2013 | Q1 | 47,159 | +11,505 |
| 2012 | Q4 | 35,654 | +11,415 |
| 2012 | Q3 | 24,239 |