World - Persistence to last grade of primary, total (% of cohort)

Persistence to last grade of primary, total (% of cohort) in World was 83.01 as of 2019. Its highest value over the past 49 years was 83.01 in 2019, while its lowest value was 66.28 in 1973.

Definition: 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.

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

See also:

Year Value
1970 67.54
1971 67.00
1972 66.72
1973 66.28
1974 66.57
1975 67.17
1976 68.10
1977 69.32
1978 69.10
1979 69.25
1980 68.84
1981 69.25
1982 69.47
1983 69.83
1984 69.71
1985 70.51
1986 71.54
1987 73.06
1988 73.22
1989 73.26
1990 74.47
1991 74.64
1992 74.97
1993 75.52
1994 75.71
1995 76.55
1996 76.51
1997 76.69
1998 76.95
1999 76.94
2000 76.45
2001 77.65
2002 76.54
2003 75.55
2004 75.19
2005 74.26
2006 74.96
2007 75.82
2008 77.85
2009 77.55
2010 77.36
2011 77.50
2012 76.10
2013 75.95
2014 80.31
2015 80.97
2016 79.93
2017 81.93
2018 80.92
2019 83.01

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.

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: 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).

Aggregation method: Weighted average

Periodicity: Annual

Classification

Topic: Education Indicators

Sub-Topic: Efficiency