Student-Teacher Ratio by Level of School
Year	Institutions of Higher Education		Secondary Schools		Primary Schools
	Number of Teachers ( 10000 persons )	Student - Teacher Ratio	Number of Teachers ( 10000 persons )	Student - Teacher Ratio	Number of Teachers ( 10000 persons )	Student - Teacher Ratio
1978	20.6	4.2	328.1	20.2	522.6	28.0
1980	24.7	4.6	317.1	17.9	549.9	26.6
1985	34.4	5.0	296.7	17.2	537.7	24.9
1986	37.2	5.1	311.5	17.1	541.4	24.3
1987	38.5	5.1	326.6	16.5	543.4	23.6
1988	39.3	5.3	338.9	15.5	550.1	22.8
1989	39.7	5.2	342.3	14.8	554.4	22.3
1990	39.5	5.2	349.2	14.6	558.2	21.9
1991	39.1	5.2	355.7	14.7	553.2	22.0
1992	38.8	5.6	362.4	14.8	552.7	22.1
1993	38.8	6.5	366.8	14.7	555.2	22.4
1994	39.6	7.1	375.7	15.2	561.1	22.9
1995	40.1	7.2	388.3	15.9	566.4	23.3
1996	40.3	7.5	404.0	16.4	573.6	23.7
1997	40.5	7.8	418.6	16.7	579.4	24.2
1998	40.7	8.4	431.2	17.0	581.9	23.9
1999	42.6	9.7	459.6	17.4	586.1	23.1
2000	46.3	12.0	458.2	18.2	586.0	22.2
2001	53.2	13.5	472.4	18.5	579.8	21.6
2002	61.8	14.6	503.0	18.7	577.9	21.0
2003	72.5	15.3	502.5	18.9	570.3	20.5
2004	85.8	15.5	535.3	18.8	562.9	20.0