Statizoid

Key features of liberal democracy, gaps filled in Iran

Iran: Key features of liberal democracy, gaps filled was 0.103 in 2025. ◆ Volatile

Latest (2025)
0.103
Change on year
up 17.0%
World rank
137th
of 176 countries
All-time high
0.162
in 2000
All-time low
0.008
in 1900
Years of data
126
1900–2025

Key features of liberal democracy, gaps filled in Iran, 1900–2025

00.050.10.15190019622025

Source: Statizoid (derived).

Analysis

Iran recorded 0.103 for key features of liberal democracy, gaps filled in 2025.

The figure is up 17.0% on the previous year and down 24.3% over ten years.

Over the whole period, key features of liberal democracy, gaps filled in Iran peaked at 0.162 in 2000 and was at its lowest, 0.008, in 1900.

Iran ranks 137th of 176 countries on this measure, in the bottom quarter.

The series is highly variable year to year, so single readings are best treated with caution.

Key features of liberal democracy, gaps filled in Iran, year by year

Year Value Change
1900 0.008 —
1901 0.008 +0.0%
1902 0.008 +0.0%
1903 0.008 +0.0%
1904 0.008 +0.0%
1905 0.008 +0.0%
1906 0.028 +250.0%
1907 0.063 +125.0%
1908 0.042 -33.3%
1909 0.025 -40.5%
1910 0.065 +160.0%
1911 0.067 +3.1%
1912 0.024 -64.2%
1913 0.024 +0.0%
1914 0.027 +12.5%
1915 0.062 +129.6%
1916 0.024 -61.3%
1917 0.024 +0.0%
1918 0.024 +0.0%
1919 0.024 +0.0%
1920 0.024 +0.0%
1921 0.02 -16.7%
1922 0.058 +190.0%
1923 0.054 -6.9%
1924 0.053 -1.9%
1925 0.033 -37.7%
1926 0.029 -12.1%
1927 0.037 +27.6%
1928 0.037 +0.0%
1929 0.037 +0.0%
1930 0.037 +0.0%
1931 0.037 +0.0%
1932 0.037 +0.0%
1933 0.036 -2.7%
1934 0.04 +11.1%
1935 0.04 +0.0%
1936 0.04 +0.0%
1937 0.04 +0.0%
1938 0.04 +0.0%
1939 0.04 +0.0%
1940 0.04 +0.0%
1941 0.05 +25.0%
1942 0.084 +68.0%
1943 0.085 +1.2%
1944 0.091 +7.1%
1945 0.101 +11.0%
1946 0.1 -1.0%
1947 0.1 +0.0%
1948 0.1 +0.0%
1949 0.1 +0.0%
1950 0.116 +16.0%
1951 0.125 +7.8%
1952 0.13 +4.0%
1953 0.09 -30.8%
1954 0.062 -31.1%
1955 0.073 +17.7%
1956 0.064 -12.3%
1957 0.064 +0.0%
1958 0.064 +0.0%
1959 0.065 +1.6%
1960 0.066 +1.5%
1961 0.068 +3.0%
1962 0.071 +4.4%
1963 0.072 +1.4%
1964 0.081 +12.5%
1965 0.081 +0.0%
1966 0.081 +0.0%
1967 0.081 +0.0%
1968 0.083 +2.5%
1969 0.083 +0.0%
1970 0.083 +0.0%
1971 0.083 +0.0%
1972 0.083 +0.0%
1973 0.083 +0.0%
1974 0.083 +0.0%
1975 0.081 -2.4%
1976 0.081 +0.0%
1977 0.081 +0.0%
1978 0.082 +1.2%
1979 0.077 -6.1%
1980 0.088 +14.3%
1981 0.094 +6.8%
1982 0.09 -4.3%
1983 0.085 -5.6%
1984 0.089 +4.7%
1985 0.09 +1.1%
1986 0.09 +0.0%
1987 0.103 +14.4%
1988 0.104 +1.0%
1989 0.108 +3.8%
1990 0.111 +2.8%
1991 0.111 +0.0%
1992 0.108 -2.7%
1993 0.118 +9.3%
1994 0.12 +1.7%
1995 0.12 +0.0%
1996 0.123 +2.5%
1997 0.149 +21.1%
1998 0.159 +6.7%
1999 0.16 +0.6%
2000 0.162 +1.3%
2001 0.154 -4.9%
2002 0.153 -0.6%
2003 0.153 +0.0%
2004 0.143 -6.5%
2005 0.128 -10.5%
2006 0.126 -1.6%
2007 0.127 +0.8%
2008 0.125 -1.6%
2009 0.122 -2.4%
2010 0.117 -4.1%
2011 0.118 +0.9%
2012 0.121 +2.5%
2013 0.129 +6.6%
2014 0.131 +1.6%
2015 0.136 +3.8%
2016 0.137 +0.7%
2017 0.134 -2.2%
2018 0.131 -2.2%
2019 0.126 -3.8%
2020 0.119 -5.6%
2021 0.091 -23.5%
2022 0.078 -14.3%
2023 0.077 -1.3%
2024 0.088 +14.3%
2025 0.103 +17.0%

Iran compared with similar countries

  • Iran's 0.103 is below the median for upper middle income countries, which is 0.347, 30% of the median. (48 countries reporting)
  • Iran's 0.103 is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 0.118, 87% of the median. (23 countries reporting)

Biggest year-on-year movements

Years where Key features of liberal democracy, gaps filled in Iran changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
1906 +250.0% 0.008 0.028
1922 +190.0% 0.02 0.058
1910 +160.0% 0.025 0.065
1915 +129.6% 0.027 0.062
1907 +125.0% 0.028 0.063
1942 +68.0% 0.05 0.084

Averages by decade

DecadeAverage LowestHighest Years
1900s 0.0206 0.008 0.063 10
1910s 0.0365 0.024 0.067 10
1920s 0.0382 0.02 0.058 10
1930s 0.0387 0.036 0.04 10
1940s 0.0851 0.04 0.101 10
1950s 0.0853 0.062 0.13 10
1960s 0.0767 0.066 0.083 10
1970s 0.0817 0.077 0.083 10
1980s 0.0941 0.085 0.108 10
1990s 0.1279 0.108 0.16 10
2000s 0.1393 0.122 0.162 10
2010s 0.128 0.117 0.137 10
2020s 0.0927 0.077 0.119 6

Countries ranked near Iran

  1. 134 Cameroon 0.114 compare
  2. 135 Laos 0.11 compare
  3. 135 Turkey 0.11 compare
  4. 137 Burkina Faso 0.103 compare
  5. 139 Central African Republic 0.102 compare
  6. 139 Vietnam 0.102 compare

See the full ranking of 176 places →

More social development data for Iran

All data for Iran →

Frequently asked questions

What is key features of liberal democracy, gaps filled in Iran?
Key features of liberal democracy, gaps filled in Iran was 0.103 in 2025, according to Statizoid (derived).
What is the highest key features of liberal democracy, gaps filled recorded in Iran?
The highest recorded value was 0.162 in 2000.
What is the lowest key features of liberal democracy, gaps filled recorded in Iran?
The lowest recorded value was 0.008 in 1900.
How does Iran rank for key features of liberal democracy, gaps filled?
Iran ranks 137th out of 176 countries with data for 2025.
Is key features of liberal democracy, gaps filled rising or falling in Iran?
Over the last ten years it is down 24.3%. The long-run trend across the full record is volatile.
Where does this Iran data come from?
The figures come from Statizoid (derived), published as part of Key features of liberal democracy, gaps filled. Statizoid updates them automatically from the source API.

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CSV · JSON — 126 observations, free to reuse under Derived by Statizoid from the sources named on the page.

Relationships involving this indicator

Comparisons with other indicators across countries. Each was re-measured with population and national income held constant, so a relationship that only reflected country size is not listed here.

All correlations →

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Key features of liberal democracy, gaps filled in Iran. Statizoid, drawing on Statizoid (derived). Retrieved 08 October 2026, from https://social-development.statizoid.com/stat/key-features-of-liberal-democracy-gaps-filled/iran-islamic-rep/

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How this figure is calculated

Key features of liberal democracy with 58 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.

Computed from

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

About this data

Indicator
Key features of liberal democracy, gaps filled
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
176 places, 28,729 data points, 1789–2025
Last refreshed

Key features of liberal democracy with 58 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.