urn:ddi:int.example:99657c1b-ffe7-4e5a-a586-8f0e616a4b1f:2 int.example 99657c1b-ffe7-4e5a-a586-8f0e616a4b1f 2 extension:ShouldCalculateFrequenciesForValidValues True extension:ShouldCalculateFrequenciesForInvalidValues True fdz@dezim-institut.de edu0057x01 edu0057x01 edu0057x01 Höchster Schulabschluss Land 4 Highest school-leaving degree country 4 Highest school-leaving degree country 4 int.example 2f30348f-a45f-449d-aa8b-190b9fbe991e 1 QuestionItem int.example 3062cd78-732c-4041-a2b1-d6e4e3168f47 1 CodeList