Survey on International Mobility of Students SAMPLING ERRORS Sampling errors relative to persons from 18 to 34 years old that have reached at least CNED 5 formation level (or they are carrying out these studies) by age group and case of mobility Units: Coefficient of variation ;Total;Moved abroad;Did not move abroad; TOTAL;1.85;13.93;1.84; 18 to 24 years old;3.47;17.54;3.52; 25 to 29 years old;2.70;21.83;2.70; 30 to 34 years old;4.05;25.81;4.01; Notes: 1) Mobility: Moving abroad for study or training 2) CNED 5: Training education, plastic arts and design and higher sport education and similar. Own university titltes where is necessary upper-secondary education tittle, of 2 years or more of duration Source: INE