urn:ddi:int.example:425f5ebb-fb68-49c7-a3c0-238dba25818d:2 int.example 425f5ebb-fb68-49c7-a3c0-238dba25818d 2 extension:ShouldCalculateFrequenciesForValidValues True extension:ShouldCalculateFrequenciesForInvalidValues True fdz@dezim-institut.de edu0035x01 edu0035x01 edu0035x01 Schulbesuch Ausland: Land 1 Schooling abroad: country 1 Schooling abroad: country 1 int.example 7759bfd8-a269-4f83-bb19-447d75f49686 1 QuestionItem int.example e342ffe7-7b67-4020-b087-3d3c0501a7d6 1 CodeList