The pandemic surge in violence continued across the U.S. in 2021, with homicides rising by 4.3% over the previous year, according to estimates from the FBI’s annual crime report, released Wednesday.
The estimated 22,900 murders and other killings last year would bring the nation’s homicide rate to 6.9 per 100,000—the highest in almost 25 years. The 2021 increase is on top of the nearly 30% spike in homicides the U.S. experienced between 2019 and 2020.
However, the FBI report—the most comprehensive picture of crime rates and trends in the U.S.—comes with a giant asterisk this year. Because the FBI switched how it collects crime data from local law enforcement agencies, up to 40% of police departments—including major ones like the New York Police Department and the Los Angeles Police Department—are missing from the report.
As a result, the FBI used estimates to calculate national crime figures. The FBI’s range of estimates means that homicides, for instance, may have increased more than 4.3% in 2021, or may have actually decreased.
Crime remains higher than before the pandemic
Crime remains significantly higher than before the pandemic. There were about 1.2 million violent crime incidents in 2019, including homicides, nonfatal shootings, rapes and robberies. In 2021, the FBI estimated that 1.31 million violent crimes took place. Homicides were up nearly 40% since before the pandemic, according to the FBI’s estimated 2021 homicide data.
According to the FBI’s data, overall violent crime stayed basically flat—though robberies declined. Property crime decreased by 3.8%. However, rape increased by 3.4%. Reported drug crimes also increased for all drug categories, except marijuana. Methamphetamine saw the biggest jump, surging by 17.8%.
Violent crimes that included the use of a firearm decreased by around 5% in 2021, while the number of people arrested with a firearm was mostly unchanged. The number of young children, age 5-14, who were counted as crime victims increased by 4%. Elderly crime victims, age 65 and older, also increased—by an estimated 9%.
FBI data suggests police also solved fewer crimes in 2021, with the clearance rate dropping about 3% for both violent crime and property crime.
Read more: Cities Keep Enforcing Curfews for Teens, Despite Evidence They Don’t Stop Crime
Big holes in the FBI’s data
For 2021 the FBI switched its data collection system from the Summary Reporting System (SRS) to the National Incident-Based Reporting System (NIBRS). NIBRS is meant to provide even more comprehensive data, but many police departments haven’t made the switch.
“[Law enforcement agencies] are not the tech industry, these are not public systems of data collection that are efficient, effective or accurate,” says Lenore Anderson, the president of the Alliance for Safety and Justice, a criminal justice non-profit that advocates for more effective public safety solutions.
Data from about 11,800 law enforcement agencies is included in the 2021 data, compared to about 15,900 agencies for 2020. Reporting from departments in several states including California, New York, Illinois, Pennsylvania, New Jersey, and Maryland is limited. An analysis by the Marshall Project showed that nearly 40% of police departments did not report any data to the FBI.
This is why experts are strongly suggesting caution against any narratives solely using the FBI crime data. “This is a critical gap in our public safety information sources,” Anderson says.
It’s also important to note that this is not data reflecting all crimes but rather local police data that was reported to the FBI. People must also keep in mind that this data is nearly a year old.
Read more: U.S. Crime Is Still Dramatically Higher Than Before the Pandemic
Still, crime remains an important topic for American citizens. According to a poll by ABC News and the Washington Post, Americans are putting crime high on their agenda for the 2022 midterms. Crime was noted as highly important to 69% of Americans polled.
With midterms coming up, crime is expected to be a focal point and the FBI data will likely be used in political arenas. According to the Post/ABC poll, 56% of voters trust Republicans more on their handling of crime, compared to 34% who trust Democrats.
But using the FBI data to make large extrapolations about crime in America is unhelpful, experts warn, especially without putting the data in the proper geographical context.
While the concerns around crime are warranted given everything that’s happened over the past couple of years, it’s important that the discourse continues to explore how the country can best address public safety without repeating the mistakes of the past.
“There are few government functions more important than public safety and when we see increases in crime, most especially violent crime, this is a significant concern for everyday people as it should be,” Anderson says. “But we also should be concerned about what has not worked in our approach to public safety.”
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Write to Josiah Bates at josiah.bates@time.com