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Distribution of articles by publishing year (to May 2021; n=94).
| Publication year | Publications, n (%) |
| 2009 | 2 (2) |
| 2010 | 3 (3) |
| 2011 | 3 (3) |
| 2012 | 2 (2) |
| 2013 | 9 (10) |
| 2014 | 10 (11) |
| 2015 | 6 (6) |
| 2016 | 3 (3) |
| 2017 | 11 (12) |
| 2018 | 10 (11) |
| 2019 | 10 (11) |
| 2020 | 18 (19) |
| 2021 | 7 (7) |
