| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2019 | Q3 | 264,865 | +13,326 |
| 2019 | Q2 | 251,539 | +5,594 |
| 2019 | Q1 | 245,945 | +26,922 |
| 2018 | Q4 | 219,023 | -13,587 |
| 2018 | Q3 | 232,610 | -23,557 |
| 2018 | Q2 | 256,167 | +25,128 |
| 2018 | Q1 | 231,039 | +84,250 |
| 2017 | Q4 | 146,789 | -13,404 |
| 2017 | Q3 | 160,193 | -13,741 |
| 2017 | Q2 | 173,934 | -13,995 |
| 2017 | Q1 | 187,929 | -263,294 |
| 2016 | Q4 | 451,223 | -5,583 |
| 2016 | Q3 | 456,806 | -26,993 |
| 2016 | Q2 | 483,799 | +15,691 |
| 2016 | Q1 | 468,108 |