Pertussis - number of reported cases, annual growth rate in Lesotho

Lesotho: Pertussis - number of reported cases, annual growth rate was -30.61 % change on previous year in 1990. ◆ Volatile

Latest (1990)
-30.61 % change on previous year
Change on year
down 1,569.4%
World rank
44th
of 191 countries
All-time high
62.43 % change on previous year
in 1979
All-time low
-87.46 % change on previous year
in 1987
Years of data
16
1975–1990

Pertussis - number of reported cases, annual growth rate in Lesotho, 1975–1990

-100-500501975198219901975: 0.612 % change on previous year1976: 32.9 % change on previous year1977: -33.3 % change on previous year1978: -4.3 % change on previous year1979: 62.4 % change on previous year1980: -10.7 % change on previous year1981: -79.4 % change on previous year1982: 33.2 % change on previous year1983: 14.1 % change on previous year1984: -10.6 % change on previous year1985: -67.1 % change on previous year1986: 54.3 % change on previous year1987: -87.5 % change on previous year1988: 33.3 % change on previous year1989: 2.1 % change on previous year1990: -30.6 % change on previous year

Source: Statizoid (derived). Measured in % change on previous year.

Analysis

The most recent figure for pertussis - number of reported cases, annual growth rate in Lesotho is -30.61 % change on previous year, measured in 1990.

That represents a change of down 1,569.4% on the previous year and down 187.2% over ten years.

Over the whole period, pertussis - number of reported cases, annual growth rate in Lesotho peaked at 62.43 % change on previous year in 1979 and was at its lowest, -87.46 % change on previous year, in 1987.

That places Lesotho 44th out of 191 countries with data for 1990, putting it in the top quarter.

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

Pertussis - number of reported cases, annual growth rate in Lesotho, year by year

Annual values for Pertussis - number of reported cases, annual growth rate in Lesotho, 1975 to 1990.
Year % change on previous year Change
1975 0.6124 % change on previous year
1976 32.87 % change on previous year +5267.1%
1977 -33.35 % change on previous year -201.5%
1978 -4.33 % change on previous year -87.0%
1979 62.43 % change on previous year -1541.8%
1980 -10.66 % change on previous year -117.1%
1981 -79.41 % change on previous year +645.0%
1982 33.17 % change on previous year -141.8%
1983 14.08 % change on previous year -57.6%
1984 -10.6 % change on previous year -175.3%
1985 -67.08 % change on previous year +532.7%
1986 54.3 % change on previous year -181.0%
1987 -87.46 % change on previous year -261.1%
1988 33.33 % change on previous year -138.1%
1989 2.08 % change on previous year -93.8%
1990 -30.61 % change on previous year -1569.4%

Averages by decade

DecadeAverage LowestHighest Years
1970s 11.65 % change on previous year -33.35 % change on previous year 62.43 % change on previous year 5
1980s -11.82 % change on previous year -87.46 % change on previous year 54.3 % change on previous year 10
1990s -30.61 % change on previous year -30.61 % change on previous year -30.61 % change on previous year 1

Countries ranked near Lesotho

  1. 41 Ethiopia -16.24 % change on previous year compare
  2. 42 Slovakia -27.37 % change on previous year
  3. 43 Maldives -29.41 % change on previous year compare
  4. 45 Tajikistan -32.33 % change on previous year
  5. 46 Latvia -32.68 % change on previous year
  6. 47 Nepal -36.35 % change on previous year compare

See the full ranking of 204 places →

More health data for Lesotho

All data for Lesotho →

Frequently asked questions

What is pertussis - number of reported cases, annual growth rate in Lesotho?
Pertussis - number of reported cases, annual growth rate in Lesotho was -30.61 % change on previous year in 1990, according to Statizoid (derived).
What is the highest pertussis - number of reported cases, annual growth rate recorded in Lesotho?
The highest recorded value was 62.43 % change on previous year in 1979.
What is the lowest pertussis - number of reported cases, annual growth rate recorded in Lesotho?
The lowest recorded value was -87.46 % change on previous year in 1987.
How does Lesotho rank for pertussis - number of reported cases, annual growth rate?
Lesotho ranks 44th out of 191 countries with data for 1990.
Is pertussis - number of reported cases, annual growth rate rising or falling in Lesotho?
Over the last ten years it is down 187.2%. The long-run trend across the full record is volatile.
Where does this Lesotho data come from?
The figures come from Statizoid (derived), published as part of Pertussis - number of reported cases, annual growth rate. Statizoid updates them automatically from the source API.

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Pertussis - number of reported cases, annual growth rate in Lesotho. Statizoid, drawing on Statizoid (derived). Retrieved 01 September 2026, from https://health.statizoid.com/stat/pertussis-number-of-reported-cases-annual-growth-rate/lesotho/

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How this figure is calculated

The year-on-year percentage change in Pertussis - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.

Computed from

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

About this data

Indicator
Pertussis - number of reported cases, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
204 places, 6,283 data points, 1975–2025
Last refreshed

The year-on-year percentage change in Pertussis - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.