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).
| Data | Valor | Modificar, % |
|---|---|---|
| 2010 | 21,5 | 1,82% |
| 2009 | 21,1 | 0,14% |
| 2007 | 21,1 | 0,17% |
| 2002 | 21,0 | 0,81% |
| 2001 | 20,9 | -1,52% |
| 2000 | 21,2 | 6,41% |
| 1999 | 19,9 | -29,18% |
| 1998 | 28,1 | -11,15% |
| 1996 | 31,6 | 3,46% |
| 1995 | 30,6 | -6,82% |
| 1970 | 32,8 |