Chlorophyll-a deviation from the global average in Samoa

Samoa: Chlorophyll-a deviation from the global average was 0.1% in 2022. ◆ Volatile

Latest (2022)
0.1%
Change on year
down 99.3%
World rank
169th
of 195 countries
All-time high
8.7%
in 2021
All-time low
0.1%
in 2019
Years of data
18
2005–2022

Chlorophyll-a deviation from the global average in Samoa, 2005–2022

024682005201320222005: 5.1 %2006: 0.12 %2007: 2.1 %2008: 2.1 %2009: 0.59 %2010: 0.96 %2011: 0.11 %2012: 1.5 %2013: 0.1 %2014: 0.1 %2015: 1.3 %2016: 0.78 %2017: 1.4 %2018: 0.91 %2019: 0.06 %2020: 5.8 %2021: 8.7 %2022: 0.06 %

Source: UN Statistics Division – processed by Our World in Data. Measured in %.

Analysis

In 2022, chlorophyll-a deviation from the global average in Samoa stood at 0.1%. That is the lowest value across all 18 years on record.

The figure is down 99.3% on the previous year and down 96.1% over ten years.

Over the whole period, chlorophyll-a deviation from the global average in Samoa peaked at 8.7% in 2021 and was at its lowest, 0.1%, in 2019.

That places Samoa 169th out of 195 countries with data for 2022, putting it in the bottom quarter.

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

Chlorophyll-a deviation from the global average in Samoa, year by year

Annual values for Chlorophyll-a deviation from the global average in Samoa, 2005 to 2022.
Year % Change
2005 5.1%
2006 0.1% -97.6%
2007 2.1% +1666.7%
2008 2.1% -0.9%
2009 0.6% -71.9%
2010 1.0% +62.7%
2011 0.1% -88.5%
2012 1.5% +1290.9%
2013 0.1% -93.5%
2014 0.1% +0.0%
2015 1.3% +1190.0%
2016 0.8% -39.5%
2017 1.4% +75.6%
2018 0.9% -33.6%
2019 0.1% -93.4%
2020 5.8% +9516.7%
2021 8.7% +50.3%
2022 0.1% -99.3%

Samoa compared with similar countries

  • Samoa's 0.1% is below the median for upper middle income countries, which is 1.8%, 3% of the median. (48 countries reporting)
  • Samoa's 0.1% is below the median for East Asia & Pacific, which is 0.6%, 11% of the median. (32 countries reporting)

Biggest year-on-year movements

Years where Chlorophyll-a deviation from the global average in Samoa changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
2020 +9516.7% 0.1% 5.8%
2007 +1666.7% 0.1% 2.1%
2012 +1290.9% 0.1% 1.5%
2015 +1190.0% 0.1% 1.3%

Averages by decade

DecadeAverage LowestHighest Years
2000s 2.0% 0.1% 5.1% 5
2010s 0.7% 0.1% 1.5% 10
2020s 4.8% 0.1% 8.7% 3

Countries ranked near Samoa

  1. 166 Kiribati 0.1% compare
  2. 167 Malta 0.1% compare
  3. 167 Mauritius 0.1% compare
  4. 169 Haiti 0.1% compare
  5. 171 Bahrain 0.1% compare
  6. 171 Cayman Islands 0.1% compare
  7. 171 Croatia 0.1% compare
  8. 171 Jamaica 0.1% compare
  9. 171 Mayotte 0.1% compare
  10. 171 Norfolk Island 0.1% compare
  11. 171 Tuvalu 0.1% compare

See the full ranking of 195 places →

More reference data data for Samoa

All data for Samoa →

Frequently asked questions

What is chlorophyll-a deviation from the global average in Samoa?
Chlorophyll-a deviation from the global average in Samoa was 0.1% in 2022, according to UN Statistics Division – processed by Our World in Data.
What is the highest chlorophyll-a deviation from the global average recorded in Samoa?
The highest recorded value was 8.7% in 2021.
What is the lowest chlorophyll-a deviation from the global average recorded in Samoa?
The lowest recorded value was 0.1% in 2019.
How does Samoa rank for chlorophyll-a deviation from the global average?
Samoa ranks 169th out of 195 countries with data for 2022.
Is chlorophyll-a deviation from the global average rising or falling in Samoa?
Over the last ten years it is down 96.1%. The long-run trend across the full record is volatile.
Where does this Samoa data come from?
The figures come from UN Statistics Division – processed by Our World in Data, published as part of Chlorophyll-a deviation from the global average. Statizoid updates them automatically from the source API.

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Chlorophyll-a deviation from the global average in Samoa. Statizoid, drawing on UN Statistics Division – processed by Our World in Data. Retrieved 23 September 2026, from https://reference.statizoid.com/stat/chlorophyll-a-deviation-from-the-global-average/samoa/

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About this data

Indicator
Chlorophyll-a deviation from the global average
Unit
%
Source
UN Statistics Division – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
195 places, 3,445 data points, 2005–2022
Last refreshed

Chlorophyll-a deviations, remote sensing (%).