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Legislative constraints on the executive index in Tanzania

Tanzania: Legislative constraints on the executive index was 0.681 in 2025. ◆ Volatile

Latest (2025)
0.681
Change on year
down 15.3%
World rank
72nd
of 174 countries
All-time high
0.917
in 2010
All-time low
0.152
in 1926
Years of data
100
1926–2025

Legislative constraints on the executive index in Tanzania, 1926–2025

0.20.40.60.81192619752025

Source: Our World in Data.

Analysis

In 2025, legislative constraints on the executive index in Tanzania stood at 0.681.

That represents a change of down 15.3% on the previous year and down 25.6% over ten years.

Over the whole period, legislative constraints on the executive index in Tanzania peaked at 0.917 in 2010 and was at its lowest, 0.152, in 1926.

Tanzania ranks 72nd of 174 countries on this measure, in the middle of the range.

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

Legislative constraints on the executive index in Tanzania, year by year

Year Value Change
1926 0.152 —
1927 0.158 +3.9%
1928 0.158 +0.0%
1929 0.158 +0.0%
1930 0.158 +0.0%
1931 0.158 +0.0%
1932 0.158 +0.0%
1933 0.158 +0.0%
1934 0.158 +0.0%
1935 0.158 +0.0%
1936 0.158 +0.0%
1937 0.158 +0.0%
1938 0.158 +0.0%
1939 0.158 +0.0%
1940 0.158 +0.0%
1941 0.158 +0.0%
1942 0.158 +0.0%
1943 0.158 +0.0%
1944 0.158 +0.0%
1945 0.158 +0.0%
1946 0.158 +0.0%
1947 0.158 +0.0%
1948 0.158 +0.0%
1949 0.158 +0.0%
1950 0.158 +0.0%
1951 0.158 +0.0%
1952 0.158 +0.0%
1953 0.197 +24.7%
1954 0.197 +0.0%
1955 0.197 +0.0%
1956 0.197 +0.0%
1957 0.22 +11.7%
1958 0.22 +0.0%
1959 0.22 +0.0%
1960 0.229 +4.1%
1961 0.343 +49.8%
1962 0.675 +96.8%
1963 0.675 +0.0%
1964 0.665 -1.5%
1965 0.665 +0.0%
1966 0.665 +0.0%
1967 0.665 +0.0%
1968 0.665 +0.0%
1969 0.665 +0.0%
1970 0.658 -1.1%
1971 0.658 +0.0%
1972 0.658 +0.0%
1973 0.658 +0.0%
1974 0.658 +0.0%
1975 0.658 +0.0%
1976 0.658 +0.0%
1977 0.658 +0.0%
1978 0.658 +0.0%
1979 0.658 +0.0%
1980 0.658 +0.0%
1981 0.658 +0.0%
1982 0.658 +0.0%
1983 0.658 +0.0%
1984 0.658 +0.0%
1985 0.658 +0.0%
1986 0.658 +0.0%
1987 0.658 +0.0%
1988 0.658 +0.0%
1989 0.658 +0.0%
1990 0.753 +14.4%
1991 0.753 +0.0%
1992 0.753 +0.0%
1993 0.753 +0.0%
1994 0.753 +0.0%
1995 0.859 +14.1%
1996 0.859 +0.0%
1997 0.859 +0.0%
1998 0.859 +0.0%
1999 0.859 +0.0%
2000 0.859 +0.0%
2001 0.859 +0.0%
2002 0.859 +0.0%
2003 0.859 +0.0%
2004 0.859 +0.0%
2005 0.894 +4.1%
2006 0.905 +1.2%
2007 0.905 +0.0%
2008 0.905 +0.0%
2009 0.905 +0.0%
2010 0.917 +1.3%
2011 0.917 +0.0%
2012 0.908 -1.0%
2013 0.91 +0.2%
2014 0.91 +0.0%
2015 0.915 +0.5%
2016 0.836 -8.6%
2017 0.833 -0.4%
2018 0.846 +1.6%
2019 0.792 -6.4%
2020 0.81 +2.3%
2021 0.794 -2.0%
2022 0.799 +0.6%
2023 0.766 -4.1%
2024 0.804 +5.0%
2025 0.681 -15.3%

Tanzania compared with similar countries

  • Tanzania's 0.681 is above the median for lower middle income countries, which is 0.424, 1.6× the median. (45 countries reporting)
  • Tanzania's 0.681 is above the median for Sub-Saharan Africa, which is 0.352, 1.9× the median. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1920s 0.1565 0.152 0.158 4
1930s 0.158 0.158 0.158 10
1940s 0.158 0.158 0.158 10
1950s 0.1922 0.158 0.22 10
1960s 0.5912 0.229 0.675 10
1970s 0.658 0.658 0.658 10
1980s 0.658 0.658 0.658 10
1990s 0.806 0.753 0.859 10
2000s 0.8809 0.859 0.905 10
2010s 0.8784 0.792 0.917 10
2020s 0.7757 0.681 0.81 6

Countries ranked near Tanzania

  1. 69 Fiji 0.71 compare
  2. 70 Botswana 0.706 compare
  3. 71 Moldova 0.703 compare
  4. 73 Uganda 0.67 compare
  5. 74 Romania 0.663 compare
  6. 75 Suriname 0.66 compare

See the full ranking of 174 places →

More reference data data for Tanzania

All data for Tanzania →

Frequently asked questions

What is legislative constraints on the executive index in Tanzania?
Legislative constraints on the executive index in Tanzania was 0.681 in 2025, according to Our World in Data.
What is the highest legislative constraints on the executive index recorded in Tanzania?
The highest recorded value was 0.917 in 2010.
What is the lowest legislative constraints on the executive index recorded in Tanzania?
The lowest recorded value was 0.152 in 1926.
How does Tanzania rank for legislative constraints on the executive index?
Tanzania ranks 72nd out of 174 countries with data for 2025.
Is legislative constraints on the executive index rising or falling in Tanzania?
Over the last ten years it is down 25.6%. The long-run trend across the full record is volatile.
Where does this Tanzania data come from?
The figures come from Our World in Data, published as part of Legislative constraints on the executive index. Statizoid updates them automatically from the source API.

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Legislative constraints on the executive index in Tanzania. Statizoid, drawing on Our World in Data. Retrieved 14 November 2026, from https://reference.statizoid.com/stat/legislative-constraints-on-the-executive-index/tanzania/

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About this data

Indicator
Legislative constraints on the executive index
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
174 places, 23,601 data points, 1789–2025
Last refreshed