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 , % |
|---|---|---|
| 2015 | 20,8 | -0,48 % |
| 2014 | 20,9 | -3,41 % |
| 2013 | 21,7 | -23,83 % |
| 2012 | 28,5 | -4,48 % |
| 2011 | 29,8 | 39,29 % |
| 1999 | 21,4 |