| Date | Rank | Web Site |
|---|---|---|
| 2021-05-05 | 443 | springer.com |
| 2021-05-04 | 446 | springer.com |
| 2021-05-03 | 417 | springer.com |
| 2021-05-02 | 589 | springer.com |
| 2021-05-01 | 502 | springer.com |
| 2021-04-30 | 529 | springer.com |
| 2021-04-29 | 420 | springer.com |
| 2021-04-28 | 517 | springer.com |
| 2021-04-27 | 382 | springer.com |
| 2021-04-26 | 354 | springer.com |
| 2021-04-25 | 424 | springer.com |
| 2021-04-24 | 502 | springer.com |
| 2021-04-23 | 617 | springer.com |
| 2021-04-22 | 527 | springer.com |