Chlorophyll-a deviation from the global average in Seychelles

Seychelles: Chlorophyll-a deviation from the global average was 0.2% in 2022. ◆ Volatile

Latest (2022)
0.2%
Change on year
down 53.3%
World rank
145th
of 195 countries
All-time high
1.8%
in 2018
All-time low
0.2%
in 2016
Years of data
18
2005–2022

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

00.511.522005201320222005: 1.1 %2006: 0.25 %2007: 0.29 %2008: 0.46 %2009: 0.94 %2010: 0.24 %2011: 0.3 %2012: 0.23 %2013: 0.32 %2014: 0.23 %2015: 0.47 %2016: 0.18 %2017: 1.4 %2018: 1.8 %2019: 0.68 %2020: 1.3 %2021: 0.45 %2022: 0.21 %

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

Analysis

The most recent figure for chlorophyll-a deviation from the global average in Seychelles is 0.2%, measured in 2022.

The figure is down 53.3% on the previous year and down 8.7% over ten years.

Over the whole period, chlorophyll-a deviation from the global average in Seychelles peaked at 1.8% in 2018 and was at its lowest, 0.2%, in 2016.

That places Seychelles 145th out of 195 countries with data for 2022, putting it in the middle of the range.

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

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

Annual values for Chlorophyll-a deviation from the global average in Seychelles, 2005 to 2022.
Year % Change
2005 1.1%
2006 0.2% -76.4%
2007 0.3% +16.0%
2008 0.5% +58.6%
2009 0.9% +104.3%
2010 0.2% -74.5%
2011 0.3% +25.0%
2012 0.2% -23.3%
2013 0.3% +39.1%
2014 0.2% -28.1%
2015 0.5% +104.3%
2016 0.2% -61.7%
2017 1.4% +700.0%
2018 1.8% +23.6%
2019 0.7% -61.8%
2020 1.3% +88.2%
2021 0.5% -64.8%
2022 0.2% -53.3%

Seychelles compared with similar countries

  • Seychelles's 0.2% is below the median for high income countries, which is 1.2%, 18% of the median. (71 countries reporting)
  • Seychelles's 0.2% is below the median for Sub-Saharan Africa, which is 2.3%, 9% of the median. (32 countries reporting)

Biggest year-on-year movements

Years where Chlorophyll-a deviation from the global average in Seychelles 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
2017 +700.0% 0.2% 1.4%

Averages by decade

DecadeAverage LowestHighest Years
2000s 0.6% 0.2% 1.1% 5
2010s 0.6% 0.2% 1.8% 10
2020s 0.6% 0.2% 1.3% 3

Countries ranked near Seychelles

  1. 142 Saint Kitts and Nevis 0.2% compare
  2. 143 Tanzania 0.2% compare
  3. 144 New Caledonia 0.2% compare
  4. 145 Turks and Caicos Islands 0.2% compare
  5. 147 Niue 0.2% compare
  6. 148 Bonaire Sint Eustatius and Saba 0.2% compare
  7. 148 Reunion 0.2% compare

See the full ranking of 195 places →

More reference data data for Seychelles

All data for Seychelles →

Frequently asked questions

What is chlorophyll-a deviation from the global average in Seychelles?
Chlorophyll-a deviation from the global average in Seychelles was 0.2% 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 Seychelles?
The highest recorded value was 1.8% in 2018.
What is the lowest chlorophyll-a deviation from the global average recorded in Seychelles?
The lowest recorded value was 0.2% in 2016.
How does Seychelles rank for chlorophyll-a deviation from the global average?
Seychelles ranks 145th out of 195 countries with data for 2022.
Is chlorophyll-a deviation from the global average rising or falling in Seychelles?
Over the last ten years it is down 8.7%. The long-run trend across the full record is volatile.
Where does this Seychelles 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 Seychelles. 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/seychelles/

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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 (%).