2011:
soep-is-2011/Q131 soep-is-2011/Q140
2012:
soep-is-2012-haupt/Q134 soep-is-2012-aufwuchs/Q131 soep-is-2012-haupt/Q143
2013:
2014:
2015:
2016:
2019:
2020:
2022:
2023:
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57b961d0-e8f6-5727-b0bd-5e3f64d25152
DE
no period:
0: