Low income - Pupil-teacher ratio, secondary

Pupil-teacher ratio, secondary in Low income was 22.09 as of 2018. Its highest value over the past 47 years was 23.27 in 2006, while its lowest value was 19.67 in 1972.

Definition: Secondary school pupil-teacher ratio is the average number of pupils per teacher in secondary school.

Source: UNESCO Institute for Statistics (http://uis.unesco.org/)

See also:

Year Value
1971 19.73
1972 19.67
1973 19.77
1974 19.86
1975 20.22
1976 20.29
1977 20.66
1978 21.01
1979 21.13
1980 21.04
1981 20.41
1982 20.49
1983 20.58
1984 20.67
1985 20.69
1986 20.64
1987 20.63
1988 20.81
1989 20.66
1990 21.24
1991 21.07
1992 21.09
1993 21.02
1994 21.29
1995 21.50
1996 21.34
1997 21.30
1998 21.96
1999 22.20
2000 21.92
2001 22.37
2002 22.54
2003 22.60
2004 22.75
2005 23.00
2006 23.27
2007 22.91
2008 23.20
2009 22.94
2010 22.88
2011 22.72
2012 22.90
2013 22.42
2014 22.50
2015 22.10
2016 21.98
2017 21.88
2018 22.09

Development Relevance: The pupil-teacher ratio is often used to compare the quality of schooling across countries, but it is often weakly related to student learning and quality of education.

Limitations and Exceptions: The comparability of pupil-teacher ratios across countries is affected by the definition of teachers and by differences in class size by grade and in the number of hours taught, as well as the different practices countries employ such as part-time teachers, school shifts, and multi-grade classes. Moreover, the underlying enrollment levels are subject to a variety of reporting errors.

Other Notes: Data retrieved via API in March 2019. For detailed information on the observation level (e.g. National Estimation, UIS Estimation, or Category not applicable), please visit UIS.Stat (http://data.uis.unesco.org/).

Statistical Concept and Methodology: Pupil-teacher ratio is calculated by dividing the number of students at the specified level of education by the number of teachers at the same level of education. Data on education are collected by the UNESCO Institute for Statistics from official responses to its annual education survey. All the data are mapped to the International Standard Classification of Education (ISCED) to ensure the comparability of education programs at the international level. The current version was formally adopted by UNESCO Member States in 2011. The reference years reflect the school year for which the data are presented. In some countries the school year spans two calendar years (for example, from September 2010 to June 2011); in these cases the reference year refers to the year in which the school year ended (2011 in the example).

Aggregation method: Weighted average

Periodicity: Annual

Classification

Topic: Education Indicators

Sub-Topic: Inputs