| Educational level of the mother | SIES | SEU |
| N/A | 6.1 | 4.9 |
| Elementary school (complete) | 1.1 | 0.3 |
| Elementary school (complete) and High School (incomplete) | 46.1 | 28.5 |
| High School (complete) | 33.4 | 38.2 |
| SIES | 6.1 | 9.3 |
| SEU | 7.1 | 18.9 |
| Total | 100.0 | 100.0 |