How many years of comparable data are there for Central African Republic and Sudan?

17 years are reported by both, from 1995 to 2011.

Where does this data come from?

UNCTAD Statistical Office, also reported in the UNCTAD Handbook of Statistics, various issues (http://unctadstat.unctad.org/), published as Import product concentration index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Central African Republic vs Sudan: Import product concentration index

Central African Republic

0.1562

in 2011

Sudan

0.1705

in 2011

Central African Republic rank

19th

Sudan rank

16th

Import product concentration index over time

Central African Republic
Sudan

How they compare

Sudan currently reports 0.1705 against 0.1562 in Central African Republic, a difference of 0.0143.

That makes Sudan's figure about 1.1 times Central African Republic's.

The two have swapped places 2 times across 17 shared years of data; in 1995 it was Sudan ahead.

Central African Republic ranks 19th and Sudan ranks 16th of 53 groups.

Across the 3 decades both report, Central African Republic averaged higher in 1 and Sudan in 2.

Head to head by decade

Decade	Central African Republic	Sudan	Difference	Ahead
1990s	0.0917	0.1092	0.0175	Sudan
2000s	0.1394	0.0931	0.0463	Central African Republic
2010s	0.1549	0.1648	0.01	Sudan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher import product concentration index, Central African Republic or Sudan?: Sudan, at 0.1705 against 0.1562 in Central African Republic as of 2011.
What is the difference in import product concentration index between Central African Republic and Sudan?: 0.0143, with Sudan ahead.
How many years of comparable data are there for Central African Republic and Sudan?: 17 years are reported by both, from 1995 to 2011.
How do Central African Republic and Sudan rank globally for import product concentration index?: Central African Republic ranks 19th and Sudan ranks 16th of 53 groups.
Where does this data come from?: UNCTAD Statistical Office, also reported in the UNCTAD Handbook of Statistics, various issues (http://unctadstat.unctad.org/), published as Import product concentration index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

About this data

Indicator: Import product concentration index
Source: UNCTAD Statistical Office, also reported in the UNCTAD Handbook of Statistics, various issues (http://unctadstat.unctad.org/)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 55 places, 935 data points, 1995–2011
Last refreshed: 07 August 2026

This indicator reflects the Herfindahl-Hirschmann index measure of the degree of import concentration within a country. The sectoral Hirschmann index is defined as the square root of the sum of the squared shares of exports of each industry in total exports for the region under study. Takes a value between 0 and 1, with 1 indicating that only a single product is exported. Higher values indicate that imports are concentrated in fewer sectors. On the contrary, values closer to 0 reflect a more equal distribution of market shares among importers. Note that this type of concentration indicator tends to be quite vulnerable to cyclical fluctuations in relative-prices, in a way that commodity price rises make commodity importers look more concentrated.