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 , % |
|---|---|---|
| 1997 | 17,2 | 1,83 % |
| 1996 | 16,9 | 0,46 % |
| 1995 | 16,8 | 0,48 % |
| 1994 | 16,8 | -1,30 % |
| 1993 | 17,0 | -0,18 % |
| 1992 | 17,0 | -0,66 % |
| 1991 | 17,1 | -4,39 % |
| 1990 | 17,9 | -4,04 % |
| 1989 | 18,7 | -5,81 % |
| 1988 | 19,8 | -5,26 % |
| 1987 | 20,9 | -5,68 % |
| 1986 | 22,2 |