Primary school pupil-teacher ratio is the number of pupils enrolled in primary school divided by the number of primary school teachers (regardless of their teaching assignment).
| Data | Valor | Modificar, % |
|---|---|---|
| 1983 | 16,9 | -6,69% |
| 1981 | 18,1 | -9,68% |
| 1980 | 20,1 | -1,55% |
| 1979 | 20,4 | -7,20% |
| 1978 | 22,0 | 9,92% |
| 1977 | 20,0 | -12,63% |
| 1976 | 22,9 | -0,07% |
| 1975 | 22,9 | -3,71% |
| 1974 | 23,8 | -7,33% |
| 1973 | 25,6 | -9,35% |
| 1972 | 28,3 | -0,65% |
| 1971 | 28,5 |