Middle income | Persistence to last grade of primary, total (% of cohort)
Persistence to last grade of primary is the percentage of children enrolled in the first grade of primary school who eventually reach the last grade of primary education. The estimate is based on the reconstructed cohort method. Development relevance: The cohort survival rate measures an education system's holding power and internal efficiency. Rates approaching 100 percent indicate high retention and low dropout levels. Limitations and exceptions: The estimates have limitations in capturing real trend in that an observed rate will be applied to the underlying indicators such as repetition rate and promotion rate throughout the cohort life, and re-entrants, grade skipping, migration or transfers during a school year are not adequately captured. Statistical concept and methodology: Cohort survival rate is calculated by dividing the total number of children belonging to a cohort who reached each successive grade of the specified level of education by the number of children in the same cohort; those originally enrolled in the first grade of primary education, and multiplying by 100. To reflect current patterns of grade transition, it is calculated based on the reconstructed cohort method, which uses data on enrollment by grade for the two most recent years and data on repeaters by grade for the most recent of those two years. 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).
Publisher
The World Bank
Origin
Middle income
Records
63
Source
Middle income | Persistence to last grade of primary, total (% of cohort)
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
64.74099731 1970
63.52524948 1971
63.23348999 1972
62.47397995 1973
62.29811859 1974
63.69335175 1975
64.72882843 1976
66.22789764 1977
65.97026062 1978
66.19799042 1979
65.80825806 1980
66.30873108 1981
66.68689728 1982
67.08583069 1983
66.83097076 1984
67.64868164 1985
68.84307861 1986
70.89974213 1987
71.23438263 1988
71.30555725 1989
72.67713165 1990
73.08669281 1991
73.44477081 1992
74.23724365 1993
74.74851227 1994
75.65441895 1995
76.11652374 1996
76.25195313 1997
76.07469177 1998
76.13188171 1999
75.65563202 2000
77.26113129 2001
76.92391205 2002
76.76905823 2003
76.93878937 2004
77.40596771 2005
77.11672974 2006
77.53411865 2007
79.81336975 2008
80.36329651 2009
80.34248352 2010
81.18418121 2011
81.25414276 2012
82.73484039 2013
86.17826843 2014
85.98162842 2015
85.65457153 2016
85.51804352 2017
85.53099823 2018
88.32637024 2019
88.31517792 2020
88.87741852 2021
2022
Middle income | Persistence to last grade of primary, total (% of cohort)
Persistence to last grade of primary is the percentage of children enrolled in the first grade of primary school who eventually reach the last grade of primary education. The estimate is based on the reconstructed cohort method. Development relevance: The cohort survival rate measures an education system's holding power and internal efficiency. Rates approaching 100 percent indicate high retention and low dropout levels. Limitations and exceptions: The estimates have limitations in capturing real trend in that an observed rate will be applied to the underlying indicators such as repetition rate and promotion rate throughout the cohort life, and re-entrants, grade skipping, migration or transfers during a school year are not adequately captured. Statistical concept and methodology: Cohort survival rate is calculated by dividing the total number of children belonging to a cohort who reached each successive grade of the specified level of education by the number of children in the same cohort; those originally enrolled in the first grade of primary education, and multiplying by 100. To reflect current patterns of grade transition, it is calculated based on the reconstructed cohort method, which uses data on enrollment by grade for the two most recent years and data on repeaters by grade for the most recent of those two years. 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).
Publisher
The World Bank
Origin
Middle income
Records
63
Source