| Year | Survey Statistics | Citation Charts | Citation Tables |
|---|---|---|---|
| 2019 | 3rd Quarter (PDF) | 3rd Quarter (PDF) | 3rd Quarter (PDF) |
| 1st Quarter (PDF) | 1st Quarter (PDF) | 1st Quarter (PDF) | |
| 2018 | 4th Quarter (PDF) | 4th Quarter (PDF) | 4th Quarter (PDF) |
| 3rd Quarter (PDF) | 3rd Quarter (PDF) | 3rd Quarter (PDF) | |
| 2nd Quarter (PDF) | 2nd Quarter (PDF) | 2nd Quarter (PDF) | |
| 1st Quarter (PDF) | 1st Quarter (PDF) | 1st Quarter (PDF) | |
| 2017 | 4th Quarter (PDF) | 4th Quarter (PDF) | 4th Quarter (PDF) |
| 3rd Quarter (PDF) | 3rd Quarter (PDF) | 3rd Quarter (PDF) | |
| 2nd Quarter (PDF) | 2nd Quarter (PDF) | 2nd Quarter (PDF) | |
| 1st Quarter (PDF) | 1st Quarter (PDF) | 1st Quarter (PDF) | |
| 2016 | 4th Quarter (PDF) | 4th Quarter (PDF) | 4th Quarter (PDF) |
| 3rd Quarter (PDF) | 3rd Quarter (PDF) | 3rd Quarter (PDF) | |
| 2nd Quarter (PDF) | 2nd Quarter (PDF) | 2nd Quarter (PDF) | |
| 1st Quarter (PDF) | 1st Quarter (PDF) | 1st Quarter (PDF) |
Last Revised: December 9, 2019
