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Liberal political institutions index in Sao Tome and Principe

Sao Tome and Principe: Liberal political institutions index was 0.815 in 2025. ▲ Rising

Latest (2025)
0.815
Change on year
unchanged
World rank
48th
of 176 countries
All-time high
0.846
in 2020
All-time low
0.31
in 1953
Years of data
126
1900–2025

Liberal political institutions index in Sao Tome and Principe, 1900–2025

00.20.40.60.8190019622025

Source: Our World in Data.

Analysis

The most recent figure for liberal political institutions index in Sao Tome and Principe is 0.815, measured in 2025.

Compared with earlier readings it is down 1.9% over ten years.

Over the whole period, liberal political institutions index in Sao Tome and Principe peaked at 0.846 in 2020 and was at its lowest, 0.31, in 1953.

That places Sao Tome and Principe 48th out of 176 countries with data for 2025, putting it in the middle of the range.

The long-run direction has been consistently rising across the 126 years of available data.

Liberal political institutions index in Sao Tome and Principe, year by year

Year Value Change
1900 0.325 —
1901 0.325 +0.0%
1902 0.325 +0.0%
1903 0.325 +0.0%
1904 0.325 +0.0%
1905 0.325 +0.0%
1906 0.325 +0.0%
1907 0.325 +0.0%
1908 0.325 +0.0%
1909 0.325 +0.0%
1910 0.325 +0.0%
1911 0.325 +0.0%
1912 0.325 +0.0%
1913 0.325 +0.0%
1914 0.325 +0.0%
1915 0.325 +0.0%
1916 0.325 +0.0%
1917 0.325 +0.0%
1918 0.325 +0.0%
1919 0.325 +0.0%
1920 0.325 +0.0%
1921 0.325 +0.0%
1922 0.325 +0.0%
1923 0.325 +0.0%
1924 0.325 +0.0%
1925 0.325 +0.0%
1926 0.325 +0.0%
1927 0.325 +0.0%
1928 0.325 +0.0%
1929 0.325 +0.0%
1930 0.325 +0.0%
1931 0.325 +0.0%
1932 0.325 +0.0%
1933 0.325 +0.0%
1934 0.325 +0.0%
1935 0.325 +0.0%
1936 0.325 +0.0%
1937 0.325 +0.0%
1938 0.325 +0.0%
1939 0.325 +0.0%
1940 0.325 +0.0%
1941 0.325 +0.0%
1942 0.325 +0.0%
1943 0.325 +0.0%
1944 0.325 +0.0%
1945 0.325 +0.0%
1946 0.325 +0.0%
1947 0.325 +0.0%
1948 0.325 +0.0%
1949 0.325 +0.0%
1950 0.325 +0.0%
1951 0.325 +0.0%
1952 0.325 +0.0%
1953 0.31 -4.6%
1954 0.323 +4.2%
1955 0.327 +1.2%
1956 0.327 +0.0%
1957 0.327 +0.0%
1958 0.327 +0.0%
1959 0.327 +0.0%
1960 0.327 +0.0%
1961 0.33 +0.9%
1962 0.333 +0.9%
1963 0.333 +0.0%
1964 0.339 +1.8%
1965 0.339 +0.0%
1966 0.339 +0.0%
1967 0.339 +0.0%
1968 0.339 +0.0%
1969 0.339 +0.0%
1970 0.339 +0.0%
1971 0.339 +0.0%
1972 0.339 +0.0%
1973 0.404 +19.2%
1974 0.384 -5.0%
1975 0.491 +27.9%
1976 0.525 +6.9%
1977 0.521 -0.8%
1978 0.521 +0.0%
1979 0.521 +0.0%
1980 0.526 +1.0%
1981 0.526 +0.0%
1982 0.526 +0.0%
1983 0.526 +0.0%
1984 0.526 +0.0%
1985 0.526 +0.0%
1986 0.526 +0.0%
1987 0.526 +0.0%
1988 0.526 +0.0%
1989 0.526 +0.0%
1990 0.587 +11.6%
1991 0.704 +19.9%
1992 0.777 +10.4%
1993 0.781 +0.5%
1994 0.781 +0.0%
1995 0.781 +0.0%
1996 0.786 +0.6%
1997 0.786 +0.0%
1998 0.786 +0.0%
1999 0.783 -0.4%
2000 0.778 -0.6%
2001 0.778 +0.0%
2002 0.778 +0.0%
2003 0.795 +2.2%
2004 0.808 +1.6%
2005 0.813 +0.6%
2006 0.814 +0.1%
2007 0.814 +0.0%
2008 0.814 +0.0%
2009 0.814 +0.0%
2010 0.815 +0.1%
2011 0.815 +0.0%
2012 0.815 +0.0%
2013 0.836 +2.6%
2014 0.831 -0.6%
2015 0.831 +0.0%
2016 0.831 +0.0%
2017 0.822 -1.1%
2018 0.808 -1.7%
2019 0.826 +2.2%
2020 0.846 +2.4%
2021 0.846 +0.0%
2022 0.833 -1.5%
2023 0.843 +1.2%
2024 0.815 -3.3%
2025 0.815 +0.0%

Averages by decade

DecadeAverage LowestHighest Years
1900s 0.325 0.325 0.325 10
1910s 0.325 0.325 0.325 10
1920s 0.325 0.325 0.325 10
1930s 0.325 0.325 0.325 10
1940s 0.325 0.325 0.325 10
1950s 0.3243 0.31 0.327 10
1960s 0.3357 0.327 0.339 10
1970s 0.4384 0.339 0.525 10
1980s 0.526 0.526 0.526 10
1990s 0.7552 0.587 0.786 10
2000s 0.8006 0.778 0.814 10
2010s 0.823 0.808 0.836 10
2020s 0.833 0.815 0.846 6

Countries ranked near Sao Tome and Principe

  1. 45 Poland 0.834 compare
  2. 46 Bulgaria 0.826 compare
  3. 47 Malawi 0.816 compare
  4. 48 Namibia 0.815 compare
  5. 50 Guatemala 0.814 compare
  6. 51 Colombia 0.81 compare

See the full ranking of 176 places →

More reference data data for Sao Tome and Principe

All data for Sao Tome and Principe →

Frequently asked questions

What is liberal political institutions index in Sao Tome and Principe?
Liberal political institutions index in Sao Tome and Principe was 0.815 in 2025, according to Our World in Data.
What is the highest liberal political institutions index recorded in Sao Tome and Principe?
The highest recorded value was 0.846 in 2020.
What is the lowest liberal political institutions index recorded in Sao Tome and Principe?
The lowest recorded value was 0.31 in 1953.
How does Sao Tome and Principe rank for liberal political institutions index?
Sao Tome and Principe ranks 48th out of 176 countries with data for 2025.
Is liberal political institutions index rising or falling in Sao Tome and Principe?
Over the last ten years it is down 1.9%. The long-run trend across the full record is rising.
Where does this Sao Tome and Principe data come from?
The figures come from Our World in Data, published as part of Liberal political institutions index. Statizoid updates them automatically from the source API.

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Liberal political institutions index in Sao Tome and Principe. Statizoid, drawing on Our World in Data. Retrieved 23 August 2026, from https://reference.statizoid.com/stat/liberal-political-institutions-index/sao-tome-and-principe/

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About this data

Indicator
Liberal political institutions index
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
176 places, 29,207 data points, 1789–2025
Last refreshed