| 16-12 Student-Teacher Ratio by Level of School | |||||||||
| (person) | |||||||||
| Year | University and College | Secondary Schools | Primary Schools | ||||||
| Number of Teachers | Student-Teacher Ratio | Number of Teachers | Student-Teacher Ratio | Number of Teachers | Student-Teacher Ratio | ||||
| 1978 | 2458 | 4.16 | 41661 | 19.36 | 82616 | 24.56 | |||
| 1980 | 3149 | 4.54 | 45232 | 18.2 | 89027 | 23.09 | |||
| 1985 | 5473 | 4.84 | 60942 | 15.68 | 98294 | 20 | |||
| 1990 | 7002 | 4.47 | 65814 | 13.12 | 95060 | 19.54 | |||
| 1991 | 7269 | 4.32 | 64923 | 12.43 | 95565 | 20.46 | |||
| 1992 | 7280 | 4.65 | 64465 | 12.15 | 96729 | 20.48 | |||
| 1993 | 7158 | 5.51 | 63448 | 11.33 | 99297 | 20.54 | |||
| 1994 | 7554 | 5.78 | 62087 | 11.66 | 101863 | 20.67 | |||
| 1995 | 7687 | 5.78 | 62934 | 11.91 | 106001 | 20.77 | |||
| 1996 | 7835 | 5.73 | 65228 | 12.32 | 112149 | 20.52 | |||
| 1997 | 7837 | 5.91 | 68115 | 12.87 | 119184 | 20.3 | |||
| 1998 | 7887 | 6.26 | 69845 | 13.72 | 123308 | 20.3 | |||
| 1999 | 7516 | 7.31 | 72195 | 14.72 | 126401 | 19.84 | |||
| 2000 | 7924 | 9.34 | 75895 | 14.92 | 131259 | 18.87 | |||
| 2001 | 9123 | 12.04 | 79419 | 15.47 | 132137 | 18.43 | |||
| 2002 | 10369 | 13 | 84714 | 15.8 | 132435 | 17.82 | |||
| 2003 | 11237 | 13.46 | 89332 | 16.22 | 132284 | 17.3 | |||