2011:
2012:
soep-is-2012-aufwuchs/Q160d soep-is-2012-haupt/Q175
2013:
2014:
2015:
2019:
2020:
soep-bip-2020-e/Q185 soep-is-2020/Q303
2022:
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b1838741-838b-5a77-89da-52a17466fae4