urn:ddi:int.example:22a4feb0-c70f-416a-969b-a68ffd567e5f:4 int.example 22a4feb0-c70f-416a-969b-a68ffd567e5f 4 extension:ShouldCalculateFrequenciesForValidValues True extension:ShouldCalculateFrequenciesForInvalidValues True fdz@dezim-institut.de v_16 v_16 v_16 Bundesland Federal state Federal state int.example 7934a62d-c5c0-45c9-a9b4-63fc0183d193 1 QuestionItem int.example c4b00ab9-1c67-4800-9afe-e57a1402a0e4 1 CodeList