Journal Abbreviation: TOP
Journal ISSN: 1134-5764
| Year | Impact Factor (IF) | Total Articles | Total Cites |
| 2023 (2024 update) | 1.5 | - | - |
| 2022 | 1.7 | - | 657 |
| 2021 | 1.857 | - | 762 |
| 2020 | 2.167 | 52 | 721 |
| 2019 | 1.452 | 19 | 466 |
| 2018 | 0.982 | 17 | 508 |
| 2017 | 1.094 | 24 | 482 |
| 2016 | 0.899 | 32 | 406 |
| 2015 | 0.927 | 32 | 388 |
| 2014 | 0.831 | 57 | 314 |
| 2013 | 0.766 | 25 | 266 |
| 2012 | 0.843 | 40 | 209 |
| 2011 | 0.765 | 24 | 214 |
| 2010 | 0.756 | 27 | 170 |