| Year | Volume | Number |
|---|---|---|
| 2024 | 60 | 17 articles |
| 2023 | 59 | 141 articles |
| 2022 | 58 | 440 articles |
| 2021 | 57 | 57 articles |
| 2020 | 56 | 156 articles |
| 2019 | 55 | 106 articles |
| 2018 | 54 | 1 2 3 4 special issue |
| 2017 | 53 | 1 2 3 4 |
| 2016 | 52 | 1 2 3 4 |
| 2015 | 51 | 1 2 3 4 |
| 2014 | 50 | 1 2 3 4 |
| 2013 | 49 | 1 2 3 4 special issue |
| 2012 | 48 | 1 2 3 4 |
| 2011 | 47 | 1 2 3 4 |
| 2010 | 46 | 1 2 3 4 |
| 2009 | 45 | 1 2 3 4 |
