2011:
2012:
soep-is-2012-haupt/Q119 soep-is-2012-aufwuchs/Q116
2013:
2014:
2015:
2016:
2017:
2019:
2020:
soep-is-2020/Q196 soep-bip-2020-e/Q114
2022:
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ffa66574-6a55-500e-adf0-5dd23a87f8e4
DE
2018: