2011:
2012:
soep-is-2012-haupt/Q24 soep-is-2012-aufwuchs/Q27
2013:
soep-is-2013-a/Q28 soep-is-2013-f/Q28
2014:
soep-is-2014-f/Q29 soep-is-2014-a/Q29
2015:
2016:
soep-is-2016-f/Q28 soep-is-2016-a/Q28
2019:
2020:
2022:
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