Which has higher terrorist attacks by method, Denmark or Sierra Leone?

Denmark, at 0 attacks against 0 attacks in Sierra Leone as of 2021.

How many years of comparable data are there for Denmark and Sierra Leone?

51 years are reported by both, from 1970 to 2021.

Where does this data come from?

National Consortium for the Study of Terrorism and Responses to Terrorism (START) (2022) – with major processing by Our World in Data, published as Terrorist attacks by method. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Denmark vs Sierra Leone: Terrorist attacks by method

Denmark

0 attacks

in 2021

Sierra Leone

0 attacks

in 2021

Denmark rank

25th

Sierra Leone rank

25th

Terrorist attacks by method over time

Denmark
Sierra Leone

How they compare

Denmark currently reports 0 attacks against 0 attacks in Sierra Leone, a difference of 0 attacks.

The two have swapped places 8 times across 51 shared years of data; in 1970 it was Sierra Leone ahead.

Denmark ranks 25th and Sierra Leone ranks 25th of 188 countries.

Across the 6 decades both report, Denmark averaged higher in 2 and Sierra Leone in 2.

Head to head by decade

Decade	Denmark	Sierra Leone	Difference	Ahead
1970s	0 attacks	0 attacks	0 attacks	—
1980s	0.2 attacks	0 attacks	0.2 attacks	Denmark
1990s	0.7778 attacks	0.4444 attacks	0.3333 attacks	Denmark
2000s	0 attacks	0.5 attacks	0.5 attacks	Sierra Leone
2010s	0 attacks	0.1 attacks	0.1 attacks	Sierra Leone
2020s	0 attacks	0 attacks	0 attacks	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher terrorist attacks by method, Denmark or Sierra Leone?: Denmark, at 0 attacks against 0 attacks in Sierra Leone as of 2021.
What is the difference in terrorist attacks by method between Denmark and Sierra Leone?: 0 attacks, with Denmark ahead.
How many years of comparable data are there for Denmark and Sierra Leone?: 51 years are reported by both, from 1970 to 2021.
How do Denmark and Sierra Leone rank globally for terrorist attacks by method?: Denmark ranks 25th and Sierra Leone ranks 25th of 188 countries.
Where does this data come from?: National Consortium for the Study of Terrorism and Responses to Terrorism (START) (2022) – with major processing by Our World in Data, published as Terrorist attacks by method. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

Share, cite or embed this page

Cite this page

Denmark vs Sierra Leone: Terrorist attacks by method. Statizoid, drawing on National Consortium for the Study of Terrorism and Responses to Terrorism (START) (2022) – with major processing by Our World in Data. Retrieved 23 September 2026, from https://reference.statizoid.com/compare/terrorist-attacks-by-method/denmark/sierra-leone/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (Our World in Data); please keep the attribution.

<a href="https://reference.statizoid.com/compare/terrorist-attacks-by-method/denmark/sierra-leone/">Denmark vs Sierra Leone: Terrorist attacks by method</a> — Statizoid

About this data

Indicator: Terrorist attacks by method
Unit: attacks
Source: National Consortium for the Study of Terrorism and Responses to Terrorism (START) (2022) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 188 places, 9,021 data points, 1970–2021
Last refreshed: 18 September 2026

Number of terrorist attacks of unknown type.