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 | 30,8 | 7,82% |
| 2008 | 28,6 | -8,08% |
| 2007 | 31,1 | -5,23% |
| 2006 | 32,8 | -2,70% |
| 2005 | 33,7 | 4,04% |
| 2004 | 32,4 | -4,33% |
| 2002 | 33,9 | 1,75% |
| 2001 | 33,3 | 4,09% |
| 2000 | 32,0 | 3,23% |
| 1999 | 31,0 | 18,07% |
| 1989 | 26,3 | 10,60% |
| 1988 | 23,7 |