Theoretical duration of lower secondary education in Cook Islands

Cook Islands: Theoretical duration of lower secondary education was 4 years in 2025. ▲ Rising

Latest (2025)
4 years
Change on year
unchanged
World rank
2nd
of 6 countries
All-time high
4 years
in 1998
All-time low
3 years
in 1970
Years of data
56
1970–2025

Theoretical duration of lower secondary education in Cook Islands, 1970–2025

01234197019972025

Source: UNESCO Institute for Statistics. Measured in years.

Analysis

The most recent figure for theoretical duration of lower secondary education in Cook Islands is 4 years, measured in 2025. That is the highest value across all 56 years on record.

That represents a change of unchanged over ten years.

Over the whole period, theoretical duration of lower secondary education in Cook Islands peaked at 4 years in 1998 and was at its lowest, 3 years, in 1970.

The long-run direction has been consistently rising across the 56 years of available data.

Theoretical duration of lower secondary education in Cook Islands, year by year

Annual values for Theoretical duration of lower secondary education (years) in Cook Islands, 1970 to 2025.
Year years Change
1970 3 years
1971 3 years +0.0%
1972 3 years +0.0%
1973 3 years +0.0%
1974 3 years +0.0%
1975 3 years +0.0%
1976 3 years +0.0%
1977 3 years +0.0%
1978 3 years +0.0%
1979 3 years +0.0%
1980 3 years +0.0%
1981 3 years +0.0%
1982 3 years +0.0%
1983 3 years +0.0%
1984 3 years +0.0%
1985 3 years +0.0%
1986 3 years +0.0%
1987 3 years +0.0%
1988 3 years +0.0%
1989 3 years +0.0%
1990 3 years +0.0%
1991 3 years +0.0%
1992 3 years +0.0%
1993 3 years +0.0%
1994 3 years +0.0%
1995 3 years +0.0%
1996 3 years +0.0%
1997 3 years +0.0%
1998 4 years +33.3%
1999 4 years +0.0%
2000 4 years +0.0%
2001 4 years +0.0%
2002 4 years +0.0%
2003 4 years +0.0%
2004 4 years +0.0%
2005 4 years +0.0%
2006 4 years +0.0%
2007 4 years +0.0%
2008 4 years +0.0%
2009 4 years +0.0%
2010 4 years +0.0%
2011 4 years +0.0%
2012 4 years +0.0%
2013 4 years +0.0%
2014 4 years +0.0%
2015 4 years +0.0%
2016 4 years +0.0%
2017 4 years +0.0%
2018 4 years +0.0%
2019 4 years +0.0%
2020 4 years +0.0%
2021 4 years +0.0%
2022 4 years +0.0%
2023 4 years +0.0%
2024 4 years +0.0%
2025 4 years +0.0%

Averages by decade

DecadeAverage LowestHighest Years
1970s 3 years 3 years 3 years 10
1980s 3 years 3 years 3 years 10
1990s 3.2 years 3 years 4 years 10
2000s 4 years 4 years 4 years 10
2010s 4 years 4 years 4 years 10
2020s 4 years 4 years 4 years 6

Countries ranked near Cook Islands

  1. 1 Germany 6 years compare
  2. 1 Lithuania 6 years compare
  3. 1 Oman 6 years compare
  4. 1 Tokelau 5 years compare
  5. 1 Turkmenistan 6 years compare
  6. 2 Niue 4 years compare
  7. 4 Anguilla 3 years compare
  8. 4 Montserrat 3 years compare
  9. 4 Saint Helena 3 years compare
  10. 5 Armenia 5 years compare
  11. 5 Azerbaijan 5 years compare
  12. 5 Belarus 5 years compare
  13. 5 Kazakhstan 5 years compare
  14. 5 Kyrgyzstan 5 years compare
  15. 5 Republic of Moldova 5 years compare
  16. 5 Palestine, State of 5 years compare
  17. 5 Russian Federation 5 years compare
  18. 5 Slovakia 5 years compare
  19. 5 Tajikistan 5 years compare
  20. 5 Ukraine 5 years compare
  21. 5 Uzbekistan 5 years compare

See the full ranking of 221 places →

More education data for Cook Islands

All data for Cook Islands →

Frequently asked questions

What is theoretical duration of lower secondary education in Cook Islands?
Theoretical duration of lower secondary education in Cook Islands was 4 years in 2025, according to UNESCO Institute for Statistics.
What is the highest theoretical duration of lower secondary education recorded in Cook Islands?
The highest recorded value was 4 years in 1998.
What is the lowest theoretical duration of lower secondary education recorded in Cook Islands?
The lowest recorded value was 3 years in 1970.
How does Cook Islands rank for theoretical duration of lower secondary education?
Cook Islands ranks 2nd out of 6 countries with data for 2025.
Is theoretical duration of lower secondary education rising or falling in Cook Islands?
Over the last ten years it is unchanged. The long-run trend across the full record is rising.
Where does this Cook Islands data come from?
The figures come from UNESCO Institute for Statistics, published as part of Theoretical duration of lower secondary education (years). Statizoid updates them automatically from the source API.

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Theoretical duration of lower secondary education in Cook Islands. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 29 August 2026, from https://education.statizoid.com/stat/theoretical-duration-of-lower-secondary-education-years-2/cook-islands/

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About this data

Indicator
Theoretical duration of lower secondary education (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
221 places, 11,823 data points, 1970–2025
Last refreshed

February 2026 Data Release