Secondary school pupil-teacher ratio is the number of pupils enrolled in secondary school divided by the number of secondary school teachers (regardless of their teaching assignment).
| Fecha | Valor | Cambiar , % |
|---|---|---|
| 2011 | 27,4 | 44,59 % |
| 2001 | 19,0 | 0,68 % |
| 2000 | 18,8 | 3,09 % |
| 1999 | 18,3 | 0,00 % |
| 1998 | 18,3 | 9,15 % |
| 1973 | 16,7 | -0,74 % |
| 1972 | 16,9 | 11,21 % |
| 1971 | 15,2 |