| 季度 | 持股数 | 市值（亿美元） |
|---|---|---|
| 2020 Q4 | 20,128,000 | 7.0 |
| 2020 Q3 | 20,128,000 | 5.3 |
| 2020 Q2 | 20,128,000 | 4.5 |
| 2020 Q1 | 20,128,000 | 3.2 |
| 2019 Q4 | 20,803,000 | 7.5 |
| 2019 Q3 | 20,803,000 | 7.1 |
| 2019 Q2 | 20,803,000 | 7.2 |
| 2019 Q1 | 20,803,000 | 6.6 |
| 2018 Q4 | 20,803,000 | 4.9 |
| 2018 Q3 | 20,803,000 | 6.5 |
| 2018 Q2 | 20,803,000 | 6.9 |
| 2018 Q1 | 20,803,000 | 7.0 |
| 2017 Q4 | 20,803,000 | 8.0 |
| 2017 Q3 | 20,803,000 | 6.5 |
| 2017 Q2 | 17,463,000 | 5.2 |