Date of publication | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | Total |
Number of posts issued | 55 | 61 | 35 | 26 | 6 | 1 | 2 | 0 | 1 | 1 | 189 |