2016:
soep-is-2016-a/Q141 soep-is-2016-f/Q141
2019:
2020:
soep-is-2020/Q162a soep-bip-2020-e/Q86
2022:
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79519ed7-b4b8-5ca2-b5b1-7532177720f6
DE
no period:
0:
2011:
2012: