knbs ke.knbs.cpi-harmonised.monthly monthly

Consumer Price Index, harmonised basis.

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VERSION v2026-09-04

UPDATED 2d ago

CHECKED 1d ago

COVERAGE 1983-12 - present

SHAPE 1,527 × 4

SIZE 22.7 KB

FREQUENCY monthly

PIPELINE automated

LICENSE Not stated

SOURCE www.knbs.or.ke

Kenya's headline consumer price index, rebased by imibare to a common reference period so that it can be read beside Rwanda's. 1,524 observations across 512 months.

KNBS publishes on February 2019 = 100 and NISR on 2014 = 100, so the two published levels say nothing about each other. Both are rebased here to the average of calendar 2019, a full year rather than a single month, so that no one month's weather or fuel price sets the anchor.

What this is not: a harmonised index in the ILO or Eurostat sense, which means a common methodology agreed between statistics offices. The basket, the weights and the treatment of housing remain each country's own. This is a common basis computed by a third party, and every row carries the published index alongside the rebased one so the arithmetic can be checked inside the dataset rather than taken on trust.

Three measures. index is the comparable level, 2019 = 100. index_as_published is KNBS's own figure, February 2019 = 100, untouched. inflation_yoy is the change on the same month a year earlier, which is base-independent and therefore already comparable across countries; the first twelve months carry no rate rather than a null one.

This series starts in December 1983, where the national one starts in March 1962. The 87 observations before that are quarterly: KNBS recorded only March, June, September and December until the index became monthly in 1984. A monthly dataset cannot carry them, because a year-on-year rate reads twelve rows back and would compare 1971 with 1968. They are not interpolated and not dropped from the record: the full history stays in ke.knbs.cpi.monthly.

Nineteen of the 512 months, January 2025 onward, come from figures read off the monthly release charts and carry two decimals where the spreadsheet months carry fifteen significant digits. They are kept, because they are what brings the series to the present, and the difference is a rounding rather than a method.

What the pair shows: over the 210 months the two series share, Kenyan prices rose 204 percent and Rwandan prices 195 percent, which is close enough to be a coincidence rather than a finding. The route differs. Kenya's index climbed faster to 2019, Rwanda's has climbed faster since, and Rwandan inflation has run above Kenyan for the eight months to July 2026.

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KENYA AND RWANDA

Rwandan consumer prices are up 89 percent since 2019 against Kenya's 51, reversing a decade in which Kenya's rose faster.

Consumer price index, both countries rebased to 2019 = 100 · monthly, 2009 to 2026

SOURCE: Kenya National Bureau of Statistics · Consumer Price Index, harmonised basis (monthly) · Updated 2026-09-04

SOURCE: National Institute of Statistics of Rwanda · Consumer Price Index, harmonised basis (monthly) · Updated 2026-08-16

#	date	measure	value	unit
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COLUMN	TYPE	DESCRIPTION	UNIT
date	date	First day of reference month	-
measure	string	index (rebased, 2019 = 100), index_as_published (KNBS's own, February 2019 = 100) or inflation_yoy (percent change on the same month a year earlier)	-
value	float64	The measure's value, in the unit named alongside	-
unit	string	index_2019=100, index_2019-02=100 or percent	-

CITATION · APA 7

imibare contributors. (2026). Consumer Price Index, harmonised basis [Data set]. imibare. v2026-09-04. https://imibare.org/datasets/ke.knbs.cpi-harmonised.monthly