| Year | Qtr | # Shares | Change |
|---|---|---|---|
| 2019 | Q3 | 222,635 | +11,201 |
| 2019 | Q2 | 211,434 | +4,702 |
| 2019 | Q1 | 206,732 | +60,552 |
| 2018 | Q4 | 146,180 | -9,067 |
| 2018 | Q3 | 155,247 | -15,724 |
| 2018 | Q2 | 170,971 | +16,772 |
| 2018 | Q1 | 154,199 | -36,845 |
| 2017 | Q4 | 191,044 | -17,445 |
| 2017 | Q3 | 208,489 | -17,884 |
| 2017 | Q2 | 226,373 | -18,216 |
| 2017 | Q1 | 244,589 | -85,359 |
| 2016 | Q4 | 329,948 | -1,987 |
| 2016 | Q3 | 331,935 | -15,154 |
| 2016 | Q2 | 347,089 | +13,874 |
| 2016 | Q1 | 333,215 |