- Annual Report 2021
- Annual report 2020
- Annual report 2019
- Annual Report 2018
- Annual report 2017
- Annual report 2016
- Annual report 2015
- Annual report 2014
- Annual report 2013
- Annual report 2012
- Annual report 2011
Annual reports from previous years can be requested from the secretariat at secretariaat.iops@rug.nl.