Theoretical duration of early childhood educational development in Sao Tome and Principe

Sao Tome and Principe: Theoretical duration of early childhood educational development was 1 years in 2019. ▼ Falling

Latest (2019)
1 years
Change on year
unchanged
World rank
92nd
of 98 countries
All-time high
2 years
in 2003
All-time low
1 years
in 2016
Years of data
12
2003–2019

Theoretical duration of early childhood educational development in Sao Tome and Principe, 2003–2019

00.511.522003201120192003: 2 years2004: 2 years2005: 2 years2006: 2 years2007: 2 years2008: 2 years2009: 2 years2010: 2 years2016: 1 years2017: 1 years2018: 1 years2019: 1 years

Source: UNESCO Institute for Statistics. Measured in years.

Analysis

Sao Tome and Principe recorded 1 years for theoretical duration of early childhood educational development in 2019. That is the lowest value across all 12 years on record.

Compared with earlier readings it is down 50.0% over ten years.

Over the whole period, theoretical duration of early childhood educational development in Sao Tome and Principe peaked at 2 years in 2003 and was at its lowest, 1 years, in 2016.

Sao Tome and Principe ranks 92nd of 98 countries on this measure, in the bottom quarter.

The long-run direction has been consistently falling across the 12 years of available data.

Theoretical duration of early childhood educational development in Sao Tome and Principe, year by year

Annual values for Theoretical duration of early childhood educational development (years) in Sao Tome and Principe, 2003 to 2019.
Year years Change
2003 2 years
2004 2 years +0.0%
2005 2 years +0.0%
2006 2 years +0.0%
2007 2 years +0.0%
2008 2 years +0.0%
2009 2 years +0.0%
2010 2 years +0.0%
2016 1 years -50.0%
2017 1 years +0.0%
2018 1 years +0.0%
2019 1 years +0.0%

Averages by decade

DecadeAverage LowestHighest Years
2000s 2 years 2 years 2 years 7
2010s 1.2 years 1 years 2 years 5

Countries ranked near Sao Tome and Principe

  1. 92 Belarus 1 years compare
  2. 92 Gambia 1 years compare
  3. 92 Hungary 1 years compare
  4. 92 Mauritius 1 years compare
  5. 92 Russia 1 years compare
  6. 92 Saudi Arabia 1 years compare

See the full ranking of 98 places →

More reference data data for Sao Tome and Principe

All data for Sao Tome and Principe →

Frequently asked questions

What is theoretical duration of early childhood educational development in Sao Tome and Principe?
Theoretical duration of early childhood educational development in Sao Tome and Principe was 1 years in 2019, according to UNESCO Institute for Statistics.
What is the highest theoretical duration of early childhood educational development recorded in Sao Tome and Principe?
The highest recorded value was 2 years in 2003.
What is the lowest theoretical duration of early childhood educational development recorded in Sao Tome and Principe?
The lowest recorded value was 1 years in 2016.
How does Sao Tome and Principe rank for theoretical duration of early childhood educational development?
Sao Tome and Principe ranks 92nd out of 98 countries with data for 2019.
Is theoretical duration of early childhood educational development rising or falling in Sao Tome and Principe?
Over the last ten years it is down 50.0%. The long-run trend across the full record is falling.
Where does this Sao Tome and Principe data come from?
The figures come from UNESCO Institute for Statistics, published as part of Theoretical duration of early childhood educational development (years). Statizoid updates them automatically from the source API.

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Theoretical duration of early childhood educational development in Sao Tome and Principe. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 28 August 2026, from https://reference.statizoid.com/stat/theoretical-duration-of-early-childhood-educational-development-years/sao-tome-and-principe/

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About this data

Indicator
Theoretical duration of early childhood educational development (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
98 places, 1,343 data points, 1972–2020
Last refreshed

Number of grades (years) in early childhood educational development.