| Year | Volume | Number |
|---|---|---|
| 2024 | 32 | 4 articles |
| 2023 | 31 | 27 articles |
| 2022 | 30 | 38 articles |
| 2021 | 29 | 50 articles |
| 2020 | 28 | 47 articles |
| 2019 | 27 | 22 articles |
| 2018 | 26 | 38 articles |
| 2017 | 25 | 33 articles |
| 2016 | 24 | 30 articles |
| 2015 | 23 | 1 2 |
| 2014 | 22 | 1 2 |
| 2013 | 21 | 1 2 |
| 2012 | 20 | 1 2 |
| 2011 | 19 | 1 2 |
