Theoretical duration of lower secondary education in Tonga
Tonga: Theoretical duration of lower secondary education was 5 years in 2020. ▲ Rising
Latest (2020)
5 years
Change on year
unchanged
World rank
5th
of 209 countries
All-time high
5 years
in 2012
All-time low
4 years
in 1970
Years of data
51
1970–2020
Theoretical duration of lower secondary education in Tonga, 1970–2020
Source: UNESCO Institute for Statistics. Measured in years.
Analysis
In 2020, theoretical duration of lower secondary education in Tonga stood at 5 years. That is the highest value across all 51 years on record.
Compared with earlier readings it is up 25.0% over ten years.
Over the whole period, theoretical duration of lower secondary education in Tonga peaked at 5 years in 2012 and was at its lowest, 4 years, in 1970.
Tonga ranks 5th of 209 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 51 years of available data.
Theoretical duration of lower secondary education in Tonga, year by year
| Year | years | Change |
|---|---|---|
| 1970 | 4 years | — |
| 1971 | 4 years | +0.0% |
| 1972 | 4 years | +0.0% |
| 1973 | 4 years | +0.0% |
| 1974 | 4 years | +0.0% |
| 1975 | 4 years | +0.0% |
| 1976 | 4 years | +0.0% |
| 1977 | 4 years | +0.0% |
| 1978 | 4 years | +0.0% |
| 1979 | 4 years | +0.0% |
| 1980 | 4 years | +0.0% |
| 1981 | 4 years | +0.0% |
| 1982 | 4 years | +0.0% |
| 1983 | 4 years | +0.0% |
| 1984 | 4 years | +0.0% |
| 1985 | 4 years | +0.0% |
| 1986 | 4 years | +0.0% |
| 1987 | 4 years | +0.0% |
| 1988 | 4 years | +0.0% |
| 1989 | 4 years | +0.0% |
| 1990 | 4 years | +0.0% |
| 1991 | 4 years | +0.0% |
| 1992 | 4 years | +0.0% |
| 1993 | 4 years | +0.0% |
| 1994 | 4 years | +0.0% |
| 1995 | 4 years | +0.0% |
| 1996 | 4 years | +0.0% |
| 1997 | 4 years | +0.0% |
| 1998 | 4 years | +0.0% |
| 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 | 5 years | +25.0% |
| 2013 | 5 years | +0.0% |
| 2014 | 5 years | +0.0% |
| 2015 | 5 years | +0.0% |
| 2016 | 5 years | +0.0% |
| 2017 | 5 years | +0.0% |
| 2018 | 5 years | +0.0% |
| 2019 | 5 years | +0.0% |
| 2020 | 5 years | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 4 years | 4 years | 4 years | 10 |
| 1980s | 4 years | 4 years | 4 years | 10 |
| 1990s | 4 years | 4 years | 4 years | 10 |
| 2000s | 4 years | 4 years | 4 years | 10 |
| 2010s | 4.8 years | 4 years | 5 years | 10 |
| 2020s | 5 years | 5 years | 5 years | 1 |
Countries ranked near Tonga
- 5 Armenia 5 years compare
- 5 Azerbaijan 5 years compare
- 5 Belarus 5 years compare
- 5 Kazakhstan 5 years compare
- 5 Kyrgyzstan 5 years compare
- 5 Republic of Moldova 5 years compare
- 5 Russian Federation 5 years compare
- 5 Slovakia 5 years compare
- 5 Tajikistan 5 years compare
- 5 Ukraine 5 years compare
- 5 Uzbekistan 5 years compare
- 5 Palestine, State of 5 years compare
More education data for Tonga
- Primary education, teachers, gaps filled 818 (2024)
- Duration of pre primary education, annual growth rate 0 % change on previous year (2025)
- Duration of pre primary education 2 (2025)
- Official entrance age to pre primary education 4 (2025)
- Population ages 15-64 58.2% (2025)
- Population ages 0-14 34.9% (2025)
- Lower secondary school starting age 12 years (2025)
- Primary school starting age 6 years (2025)
- Primary secondary enrollment completion rates, gaps filled 108.79 (2024)
- School enrollment, primary 108.8% (2024)
Frequently asked questions
- What is theoretical duration of lower secondary education in Tonga?
- Theoretical duration of lower secondary education in Tonga was 5 years in 2020, according to UNESCO Institute for Statistics.
- What is the highest theoretical duration of lower secondary education recorded in Tonga?
- The highest recorded value was 5 years in 2012.
- What is the lowest theoretical duration of lower secondary education recorded in Tonga?
- The lowest recorded value was 4 years in 1970.
- How does Tonga rank for theoretical duration of lower secondary education?
- Tonga ranks 5th out of 209 countries with data for 2020.
- Is theoretical duration of lower secondary education rising or falling in Tonga?
- Over the last ten years it is up 25.0%. The long-run trend across the full record is rising.
- Where does this Tonga 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.
Download this data
CSV · JSON — 51 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
Number of grades (years) in lower secondary education.