How many years of comparable data are there for Tanzania and Zambia?

22 years are reported by both, from 2003 to 2024.

Where does this data come from?

Statizoid (derived), published as Regulatory Quality - Governance estimate (approx. -2.5 to +2.5), annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Tanzania vs Zambia: Regulatory Quality - Governance estimate (approx. -2.5 to +2.5)

Tanzania

9.36 % change on previous year

in 2024

Zambia

9.63 % change on previous year

in 2024

Tanzania rank

61st

Zambia rank

60th

Regulatory Quality - Governance estimate (approx. -2.5 to +2.5) over time

Tanzania
Zambia

How they compare

Zambia currently reports 9.63 % change on previous year against 9.36 % change on previous year in Tanzania, a difference of 0.27 % change on previous year.

The two have swapped places 11 times across 22 shared years of data; in 2003 it was Tanzania ahead.

Tanzania ranks 61st and Zambia ranks 60th of 205 countries.

Across the 3 decades both report, Tanzania averaged higher in 1 and Zambia in 2.

Head to head by decade

Decade	Tanzania	Zambia	Difference	Ahead
2000s	8.05 % change on previous year	8.55 % change on previous year	0.5034 % change on previous year	Zambia
2010s	-5.8 % change on previous year	-2.38 % change on previous year	3.42 % change on previous year	Zambia
2020s	4.88 % change on previous year	2.91 % change on previous year	1.97 % change on previous year	Tanzania

Averages of every year both report within each decade.

Frequently asked questions

Which has higher regulatory quality - governance estimate (approx. -2.5 to +2.5), Tanzania or Zambia?: Zambia, at 9.63 % change on previous year against 9.36 % change on previous year in Tanzania as of 2024.
What is the difference in regulatory quality - governance estimate (approx. -2.5 to +2.5) between Tanzania and Zambia?: 0.27 % change on previous year, with Zambia ahead.
How many years of comparable data are there for Tanzania and Zambia?: 22 years are reported by both, from 2003 to 2024.
How do Tanzania and Zambia rank globally for regulatory quality - governance estimate (approx. -2.5 to +2.5)?: Tanzania ranks 61st and Zambia ranks 60th of 205 countries.
Where does this data come from?: Statizoid (derived), published as Regulatory Quality - Governance estimate (approx. -2.5 to +2.5), annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Tanzania vs Zambia: Regulatory Quality - Governance estimate (approx. -2.5 to +2.5). Statizoid, drawing on Statizoid (derived). Retrieved 29 September 2026, from https://reference.statizoid.com/compare/regulatory-quality-governance-estimate-approx-2-5-to-2-5-annual-growth-rate/tanzania/zambia/

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<a href="https://reference.statizoid.com/compare/regulatory-quality-governance-estimate-approx-2-5-to-2-5-annual-growth-rate/tanzania/zambia/">Tanzania vs Zambia: Regulatory Quality - Governance estimate (approx. -2.5 to +2.5)</a> — Statizoid

About this data

Indicator: Regulatory Quality - Governance estimate (approx. -2.5 to +2.5), annual growth rate
Unit: % change on previous year
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 205 places, 4,390 data points, 2003–2024
Last refreshed: 25 September 2026

The year-on-year percentage change in Regulatory Quality - Governance estimate (approx. -2.5 to +2.5). Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.