Chlorophyll-a deviation from the global average in Bulgaria

Bulgaria: Chlorophyll-a deviation from the global average was 11.1% in 2022. ◆ Volatile

Latest (2022)
11.1%
Change on year
up 61.5%
World rank
17th
of 195 countries
All-time high
11.1%
in 2022
All-time low
0.4%
in 2016
Years of data
18
2005–2022

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

02.557.5102005201320222005: 4.2 %2006: 4.9 %2007: 1.7 %2008: 9.4 %2009: 5.6 %2010: 8.7 %2011: 1.3 %2012: 0.48 %2013: 3.1 %2014: 1.9 %2015: 2 %2016: 0.36 %2017: 0.41 %2018: 2.4 %2019: 9.3 %2020: 2.2 %2021: 6.9 %2022: 11.1 %

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 Bulgaria is 11.1%, measured in 2022. That is the highest value across all 18 years on record.

The figure is up 61.5% on the previous year and up 2,214.6% over ten years.

Over the whole period, chlorophyll-a deviation from the global average in Bulgaria peaked at 11.1% in 2022 and was at its lowest, 0.4%, in 2016.

That places Bulgaria 17th out of 195 countries with data for 2022, putting it in the top 10%.

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

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

Annual values for Chlorophyll-a deviation from the global average in Bulgaria, 2005 to 2022.
Year % Change
2005 4.2%
2006 4.9% +18.5%
2007 1.7% -65.2%
2008 9.4% +448.3%
2009 5.6% -40.7%
2010 8.7% +55.3%
2011 1.3% -85.3%
2012 0.5% -62.5%
2013 3.1% +543.8%
2014 1.9% -39.8%
2015 2.0% +5.9%
2016 0.4% -81.7%
2017 0.4% +13.9%
2018 2.4% +487.8%
2019 9.3% +285.1%
2020 2.2% -76.4%
2021 6.9% +214.2%
2022 11.1% +61.5%

Bulgaria compared with similar countries

  • Bulgaria's 11.1% is above the median for high income countries, which is 1.2%, 9.3× the median. (71 countries reporting)
  • Bulgaria's 11.1% is above the median for Europe & Central Asia, which is 2.0%, 5.5× the median. (37 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2000s 5.2% 1.7% 9.4% 5
2010s 3.0% 0.4% 9.3% 10
2020s 6.7% 2.2% 11.1% 3

Countries ranked near Bulgaria

  1. 14 Falkland Islands 12.9% compare
  2. 15 Gabon 12.4% compare
  3. 16 Norway 11.1% compare
  4. 18 Nauru 11.0% compare
  5. 19 Iceland 10.2% compare
  6. 20 French Southern Territories 10.1% compare

See the full ranking of 195 places →

More reference data data for Bulgaria

All data for Bulgaria →

Frequently asked questions

What is chlorophyll-a deviation from the global average in Bulgaria?
Chlorophyll-a deviation from the global average in Bulgaria was 11.1% 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 Bulgaria?
The highest recorded value was 11.1% in 2022.
What is the lowest chlorophyll-a deviation from the global average recorded in Bulgaria?
The lowest recorded value was 0.4% in 2016.
How does Bulgaria rank for chlorophyll-a deviation from the global average?
Bulgaria ranks 17th out of 195 countries with data for 2022.
Is chlorophyll-a deviation from the global average rising or falling in Bulgaria?
Over the last ten years it is up 2,214.6%. The long-run trend across the full record is volatile.
Where does this Bulgaria 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 Bulgaria. 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/bulgaria/

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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 (%).