High income - Pupil-teacher ratio, preprimary

Pupil-teacher ratio, preprimary in High income was 14.21 as of 2018. Its highest value over the past 47 years was 23.17 in 1975, while its lowest value was 14.03 in 2014.

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

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

See also:

Year Value
1971 22.57
1972 22.34
1973 22.67
1974 22.91
1975 23.17
1976 22.99
1977 22.66
1978 22.51
1979 22.18
1980 21.84
1981 21.51
1982 21.16
1983 20.87
1984 20.62
1985 20.49
1986 20.45
1987 20.31
1988 20.09
1989 19.82
1990 19.56
1991 19.33
1992 19.49
1993 19.58
1994 19.49
1995 19.51
1996 19.75
1997 19.51
1998 20.22
1999 19.42
2000 18.97
2001 18.52
2002 17.69
2003 17.06
2004 16.51
2005 16.70
2006 16.25
2007 16.04
2008 16.04
2009 15.68
2010 15.06
2011 14.60
2012 14.14
2013 14.09
2014 14.03
2015 14.11
2016 14.34
2017 14.32
2018 14.21

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