Aaron O'Neill
Research lead for society, economy, and politics: Europe & global
Detailed statistics
Gun ownership in the U.S. 1972-2023
Detailed statistics
U.S. public opinion on a law that bans private handgun possession 1959-2023
Detailed statistics
Number of mass shooting victims in the U.S. and other developed countries 1998-2019
Number of mass shooting victims in the U.S. and other developed countries 1998-2019
Comparison of the annual number of mass shooting casualties in the United States and all other developed countries combined from 1998 to 2019
U.S. adults' support for various gun control measures by party 2024
Level of support for various gun control measures in the United States 2024, by party identification
Share of mass public shooters U.S. 1999-2024, by location/relation to shooting site
Share of mass public shooters in the United States from 1966 to January 2024, by location and existing relationship to the shooting site*
Share of mass public shooters U.S. 1999-2024, by race and location of shooting
Share of mass public shooters in the United States from 1966 to January 2024, by race and location of shooting*
U.S. consumers on having control over how companies use their personal data 2024
Consumers in the United States on having control over how companies use their data as of October 2024
U.S. adults' support for various gun control measures 2023
Level of support for various gun control measures in the United States 2023
U.S. mass shooting victims, by fatalities and injuries 1982-2024
Number of victims of mass shootings in the United States between 1982 and September 2024
Worst mass shootings in the U.S., as of September 2024
Number of victims of the worst mass shootings in the United States between 1982 and September 2024
Leading gun control lobby organizations in the U.S., by amount spent 2022
Leading gun control lobby organizations in the United States in 2022, by amount spent (in 1,000 U.S. dollars)
Number of shooting incidents Japan 2017-2023, by firearm type
Number of gun shooting incidents in Japan from 2017 to 2023, by type of firearm
Number of injuries from shooting incidents Japan 2014-2023
Number of injuries resulting from gun shooting incidents in Japan from 2014 to 2023
Guns used in mass shootings in the U.S. 1982-2024
Weapon types used in mass shootings in the United States between 1982 and September 2024, by number of weapons and incidents
U.S. support for stricter gun control laws 2023, by party
Do you support or oppose stricter gun control laws in the United States?
Mass shootings in the U.S. 1982-2024, by state
Number of mass shootings in the United States between 1982 and September 2024, by state
Mass shootings in the U.S. 1982-2024
Number of mass shootings in the United States between 1982 and September 2024
Mass shootings in the U.S.: shooters by gender, as of September 2024
Number of mass shootings in the United States between 1982 and September 2024, by shooter's gender
Mass shootings in the U.S. by shooter’s by race/ethnicity as of September 2024
Number of mass shootings in the United States between 1982 and September 2024, by shooter's race or ethnicity
Number of fatalities from shooting incidents Japan 2014-2023
Number of fatalities resulting from gun shooting incidents in Japan from 2014 to 2023
Americans on gun laws reducing the number of mass shootings 2017
If new gun control laws were passed, do you think it would reduce the number of mass shootings in the U.S.?
Frequency of weight control in Italy 2023, by body mass index
Share of individuals checking their weight in Italy in 2023, by body mass index and frequency
Annual share of AR-15 assault rifles in total U.S. firearm production 1990-2020
Annual share of AR-15 assault rifles in the total number of firearms manufactured in the United States from 1990 to 2020
Selected figures on the pest control industry in the U.S. 2020-2024
Selected figures on the pest control industry in the United States from 2020 to 2024
U.S. gun laws 2024, by state
Gun laws in the United States in 2024, by state
U.S. support for protecting or limiting gun ownership rights 2024
Do you think it's more important to protect or to limit gun ownership rights?
Leading states for gun law strength in the U.S. 2024
Leading states for gun law strength in the United States as of January 2024 (index score)
Biggest healthcare data breaches to date in the U.S. as of 2024
Largest healthcare data breaches to date in the United States as of November 2024, by number of affected individuals (in millions)
Mass shootings in the U.S.: legality of shooter's weapons, as of September 2024
Number of mass shootings in the United States between 1982 and September 2024, by legality of shooter's weapons
Opinion on gun control strictness and number of mass shootings in the U.S. 2017
Opinion on the effect of inhibiting legal gun ownership on number of mass shootings in the United States as of 2017, by political party
Total federal drug control spending in the U.S. 2012-2025
Total federal drug control spending in the United States from FY 2012 to FY 2025 (in million U.S. dollars)
Biggest healthcare data breaches in the U.S. in 2023
Largest healthcare data breaches in the United States in 2023, by number of affected individuals (in millions)
U.S. number of health data records exposed in data breaches 2009-H1 2024
Number of healthcare data records breached in the United States from 2009 to 1st half 2024 (in millions)
Global markets with highest data breach density 2023
Markets with highest data breach density worldwide in 2023 (in breaches per 1,000 individuals)
Global biggest data breaches 2023, by impact
Most significant incidents of data breach worldwide in 2023, by number of breached accounts (in millions)
Americans' fears of becoming a victim of a mass shooting 2015 & 2017
How worried are you that you or someone in your family will become a victim of a mass shooting?
Number of K-12 school shootings U.S. 1999-2024
Number of incidents where a gun is fired, brandished, or a bullet hits school property, regardless of the number of victims, time, day, or reason in K-12 schools in the United States from 1999 to December 2024*
Current year in various historical and world calendars 2024
Current year according to various historical and world calendars, as of January 1. 2024
Pest control industry market value in the United States 2012-2024
Market value of the pest control industry in the United States from 2012 to 2024 (in million U.S. dollars)
U.S. mass shootings 1982-2024, by prior signs of shooter's mental health issues
Mass shootings in the United States between 1982 and September 2024, by presence of prior signs of shooter's mental health issues
Number of mobile data subscriptions in Finland 2013-2023, by type
Number of mobile data transfer subscriptions in Finland from 2013 to 2023, by type (in 1,000s)
Biggest data breaches global in 2024
Largest data breach incidents disclosed worldwide in 2024
Global healthcare organizations encounter data encryption after ransomware 2021-2024
Share of healthcare organizations worldwide encountering data encryption as a result of ransomware attacks from 2021 to 2024
Impact of data privacy laws on digital advertising in the U.S. 2024
Impact of data privacy laws on digital advertising in the United States as of July 2024
Reasons to collect mobile app data from global iOS users 2024
Function of data collected by mobile app publishers via iOS apps from users worldwide as of September 2024
Number of data compromises and impacted individuals in U.S. 2005-2023
Annual number of data compromises and individuals impacted in the United States from 2005 to 2023
All-time biggest online data breaches 2024
Most significant cases of data breach worldwide as of January 2024 (in millions), by number of compromised data records and individuals impacted
Largest deals for data center property sales in the U.S. 2023
Largest data center property sale deals in the United States in 2023
Companies using big data South Korea 2022, by type of analyzed data
Usage of big data technology and services among companies in South Korea in 2022, by type of analyzed data
U.S. beliefs on how Democratic and Republican gun policies impact safety 2023
Share of Americans with various beliefs on how gun policy by the Democratic Party and gun policy by the Republican Party impacts people's safety from gun violence in the United States in 2023
EU enforcement of the right to control personal data online 2023
Opinion of adults in the European Union on the enforcement of the right to control one's own data online as of March 2023
German Shooting Sport and Archery Federation: number of members 2024
Number of members of the German Shooting Sport and Archery Federation (DSB) from 2002 to 2024 (in millions)
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