Level of knowledge Valid None Data Dictionary Vocabularies Eionet Data Dictionary Too young to speak Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge None or minimum Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Total Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge All levels Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Very high Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Proficient Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge High Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Very good Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Broad Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Good Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Very good and good Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Fair Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Moderate Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Some Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Basic Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Limited Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Low Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Bad Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Very low Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Very bad Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Bad and very bad Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Severe Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Very severe Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Some and severe Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge None Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge No response Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Not specified Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Unknown Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Mother tongue Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Heavy Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Moderate and severe Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Moderate or heavy Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Very mild Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Mild Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Mild and very mild Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Light Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge None or light Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Severe and very severe Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Moderate, severe and very severe Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Strong Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Intermediate Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Poor Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Medium Invalid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge Not applicable Valid Data Dictionary Vocabularies Eionet Data Dictionary Level of knowledge