urn:ddi:int.example:5d4f58bb-74a9-4feb-918b-7106b62d4c57:2 int.example 5d4f58bb-74a9-4feb-918b-7106b62d4c57 2 extension:ShouldCalculateFrequenciesForValidValues True extension:ShouldCalculateFrequenciesForInvalidValues True fdz@dezim-institut.de edu0038x01 edu0038x01 edu0038x01 Schulbesuch Ausland: Land 4 Schooling abroad: country 4 Schooling abroad: country 4 int.example c984e4eb-7a1e-467e-88cb-66eabfacf3f0 1 QuestionItem int.example c744ca50-5c41-4d39-86ae-65e45a49d960 1 CodeList