How many years of comparable data are there for Niger and Sri Lanka?

63 years are reported by both, from 1961 to 2023.

Where does this data come from?

Statizoid (derived), published as Roots and Tubers, Total — Gross Production Value (constant 2014-2016 thousand SLC), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Niger vs Sri Lanka: Roots and Tubers, Total: Gross Production … square kilometre SLC

Niger

330.68 1000 SLC per square kilometre

in 2023

Sri Lanka

312.77 1000 SLC per square kilometre

in 2023

Niger rank

30th

Sri Lanka rank

32nd

Roots and Tubers, Total: Gross Production … square kilometre SLC over time

Niger
Sri Lanka

How they compare

Niger currently reports 330.68 1000 SLC per square kilometre against 312.77 1000 SLC per square kilometre in Sri Lanka, a difference of 17.91 1000 SLC per square kilometre.

That makes Niger's figure about 1.1 times Sri Lanka's.

The two have swapped places 1 time across 63 shared years of data; in 1961 it was Sri Lanka ahead.

Niger ranks 30th and Sri Lanka ranks 32nd of 141 countries.

Sri Lanka has averaged higher in every one of the 7 decades both report.

Head to head by decade

Decade	Niger	Sri Lanka	Difference	Ahead
1960s	23.97 1000 SLC per square kilometre	261.47 1000 SLC per square kilometre	237.5 1000 SLC per square kilometre	Sri Lanka
1970s	27.38 1000 SLC per square kilometre	460.93 1000 SLC per square kilometre	433.55 1000 SLC per square kilometre	Sri Lanka
1980s	30.82 1000 SLC per square kilometre	515.71 1000 SLC per square kilometre	484.89 1000 SLC per square kilometre	Sri Lanka
1990s	25.5 1000 SLC per square kilometre	319.45 1000 SLC per square kilometre	293.95 1000 SLC per square kilometre	Sri Lanka
2000s	32.65 1000 SLC per square kilometre	274.97 1000 SLC per square kilometre	242.32 1000 SLC per square kilometre	Sri Lanka
2010s	87.35 1000 SLC per square kilometre	328.98 1000 SLC per square kilometre	241.63 1000 SLC per square kilometre	Sri Lanka
2020s	274.84 1000 SLC per square kilometre	311.8 1000 SLC per square kilometre	36.97 1000 SLC per square kilometre	Sri Lanka

Averages of every year both report within each decade.

Frequently asked questions

Which has higher roots and tubers, total — gross production value (constant 2014-2016), Niger or Sri Lanka?: Niger, at 330.68 1000 SLC per square kilometre against 312.77 1000 SLC per square kilometre in Sri Lanka as of 2023.
What is the difference in roots and tubers, total — gross production value (constant 2014-2016) between Niger and Sri Lanka?: 17.91 1000 SLC per square kilometre, with Niger ahead.
How many years of comparable data are there for Niger and Sri Lanka?: 63 years are reported by both, from 1961 to 2023.
How do Niger and Sri Lanka rank globally for roots and tubers, total — gross production value (constant 2014-2016)?: Niger ranks 30th and Sri Lanka ranks 32nd of 141 countries.
Where does this data come from?: Statizoid (derived), published as Roots and Tubers, Total — Gross Production Value (constant 2014-2016 thousand SLC), per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Niger vs Sri Lanka: Roots and Tubers, Total — Gross Production Value (constant 2014-2016). Statizoid, drawing on Statizoid (derived). Retrieved 12 October 2026, from https://agriculture.statizoid.com/compare/roots-and-tubers-total-gross-production-value-constant-2014-2016-thousand-slc-per-square/niger/sri-lanka/

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<a href="https://agriculture.statizoid.com/compare/roots-and-tubers-total-gross-production-value-constant-2014-2016-thousand-slc-per-square/niger/sri-lanka/">Niger vs Sri Lanka: Roots and Tubers, Total — Gross Production Value (constant 2014-2016)</a> — Statizoid

About this data

Indicator: Roots and Tubers, Total — Gross Production Value (constant 2014-2016 thousand SLC), per square kilometre
Unit: 1000 SLC per square kilometre
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 141 places, 7,928 data points, 1961–2023
Last refreshed: 08 October 2026

Roots and Tubers, Total — Gross Production Value (constant 2014-2016 thousand SLC) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.