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 8 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 12.55 20.25 15.25 18 to 29 years 13.62 23.11 19.49 30 to 34 years old 19.12 31.89 24.25 Notes: 1) Mobility: Moving abroad for study or training 2) CNED 8: Doctorate Education Source: INE