2011:
soep-is-2011/Q243.072012:
soep-is-2012-aufwuchs/Q243.07 soep-is-2012-haupt/Q289.072013:
soep-is-2013-a/Q385 soep-is-2013-f/Q385_72014:
soep-is-2014-f/Q321_g soep-is-2014-a/Q321_g2015:
soep-is-2015/Q406i2016:
soep-is-2016-a/Q474i soep-is-2016-f/Q474i2019:
soep-is-2019/Q628i2020:
soep-is-2020/Q467g soep-bip-2020-e/Q261i