| Year | Volume | Number |
|---|---|---|
| 2023 | 35 | 7 articles |
| 2022 | 34 | 30 articles |
| 2021 | 33 | 1 2 3 |
| 2020 | 32 | 1 2 3 special issue |
| 2019 | 31 | 1 2 3 special issue |
| 2018 | 30 | 1 2 3 |
| 2017 | 29 | 1 2 3 |
| 2016 | 28 | 1 2 3 |
| 2015 | 27 | 1 2 3 |
| 2014 | 26 | 1 2 3 special issue |
| 2013 | 25 | 1 2 3 |
| 2012 | 24 | 1 2 3 |
| 2011 | 23 | 1 2 3 |
| 2010 | 22 | 1 2 3 |
| 2009 | 21 | 1 2 3 |
| 2008 | 20 | 1 2 |
