Bulgaria vs Japan: Annual change in primary energy from nuclear, annual growth rate

Bulgaria
-14.64 % change on previous year
in 2025
Japan
23.02 % change on previous year
in 2025
Bulgaria rank
19th
Japan rank
17th

Annual change in primary energy from nuclear, annual growth rate over time

  • Bulgaria
  • Japan
-1.0k-50005001.0k196719962025

How they compare

Japan currently reports 23.02 % change on previous year against -14.64 % change on previous year in Bulgaria, a difference of 37.66 % change on previous year.

That makes Japan's figure about 1.6 times Bulgaria's.

The two have swapped places 31 times across 45 shared years of data; in 1975 it was Bulgaria ahead.

Bulgaria ranks 19th and Japan ranks 17th of 35 countries.

Across the 6 decades both report, Bulgaria averaged higher in 3 and Japan in 3.

Head to head by decade

Decade Bulgaria Japan Difference Ahead
1970s 250.05 % change on previous year -41.91 % change on previous year 291.96 % change on previous year Bulgaria
1980s 30.6 % change on previous year 56.4 % change on previous year 25.8 % change on previous year Japan
1990s -4.43 % change on previous year 3.81 % change on previous year 8.23 % change on previous year Japan
2000s 5.58 % change on previous year -51.02 % change on previous year 56.6 % change on previous year Bulgaria
2010s 18.74 % change on previous year 10.96 % change on previous year 7.77 % change on previous year Bulgaria
2020s -68.5 % change on previous year -51.26 % change on previous year 17.24 % change on previous year Japan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher annual change in primary energy from nuclear, annual growth rate, Bulgaria or Japan?
Japan, at 23.02 % change on previous year against -14.64 % change on previous year in Bulgaria as of 2025.
What is the difference in annual change in primary energy from nuclear, annual growth rate between Bulgaria and Japan?
37.66 % change on previous year, with Japan ahead.
How many years of comparable data are there for Bulgaria and Japan?
45 years are reported by both, from 1975 to 2025.
How do Bulgaria and Japan rank globally for annual change in primary energy from nuclear, annual growth rate?
Bulgaria ranks 19th and Japan ranks 17th of 35 countries.
Where does this data come from?
Statizoid (derived), published as Annual change in primary energy from nuclear, annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Japan: Annual change in primary energy from nuclear, annual growth rate. Statizoid, drawing on Statizoid (derived). Retrieved 05 September 2026, from https://energy.statizoid.com/compare/annual-change-in-primary-energy-from-nuclear-annual-growth-rate/bulgaria/japan/

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About this data

Indicator
Annual change in primary energy from nuclear, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
37 places, 1,538 data points, 1967–2025
Last refreshed

The year-on-year percentage change in Annual change in primary energy from nuclear. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.