2011:
2012:
soep-is-2012-haupt/Q113 soep-is-2012-aufwuchs/LQ99_Q100R4
2013:
soep-is-2013-a/Q144 soep-is-2013-f/Q144
2014:
2015:
2016:
soep-is-2016-f/Q171 soep-is-2016-a/Q171
2017:
2019:
2020:
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4cbf8e7a-fbd6-5dc2-b762-06410b109c6f
DE
no period:
0:
2018:
2021:
2022:
2023:
2024: