| 季度 | 持股数 | 市值（亿美元） |
|---|---|---|
| 2021 Q1 | 13,887,037 | 4.1 |
| 2020 Q4 | 23,420,000 | 6.7 |
| 2020 Q3 | 23,420,000 | 5.2 |
| 2020 Q2 | 24,070,000 | 5.4 |
| 2020 Q1 | 24,070,000 | 4.2 |
| 2019 Q4 | 24,264,000 | 7.4 |
| 2019 Q3 | 24,264,000 | 7.3 |
| 2019 Q2 | 24,264,000 | 7.2 |
| 2019 Q1 | 24,264,000 | 6.1 |
| 2018 Q4 | 24,264,000 | 5.7 |
| 2018 Q3 | 24,264,000 | 7.1 |
| 2018 Q2 | 24,264,000 | 7.4 |
| 2018 Q1 | 23,324,000 | 7.0 |
| 2017 Q4 | 23,324,000 | 7.5 |
| 2017 Q3 | 23,324,000 | 6.7 |
| 2017 Q2 | 23,324,000 | 7.5 |
| 2017 Q1 | 23,324,000 | 7.5 |
| 2016 Q4 | 23,324,000 | 6.3 |