Parents worry a lot about their kids. But which dangers are most probable? Pew Research recently conducted a study examining the data on the dangers that teens and kids face.

Here are seven figures you should know from the report:

1. Around 15 percent of eighth-graders, three-in-ten high-school sophomores and four-in-ten seniors report some use of illicit drugs in the past 12 months. More than 1-in-3 (35.3 percent) high school seniors reported any alcohol use in the past 30 days, and 11.4 percent reported smoking cigarettes. Seniors were also as likely to have smoked marijuana in the past 30 days (21.3 percent) as to have gotten drunk (20.6 percent).

2. Nearly 1 our of every 4 (24.7 percent) high-school students say they’ve been in a physical fight at least once in the past 12 months before the 2013 survey. (Only 3.1 percent needed medical attention after the fight.)

3. In 2012, the arrest rate for youths ages 10 to 17 was around four of every 100 youths. While the rates for all racial subgroups has been declining, the arrest rate for black youths is still more than twice that of any other group.

4. There were 24.2 births per 1,000 teen females in 2014, a record low. The rates, however, differ considerably between racial subgroups: the highest subgroup birth rate was Hispanic teens (41.7 per 1,000) while the lowest was Asian teens (8.7 per 1,000).

5. About one-in-ten adolescents, or around 2.6 million, have experienced major depression in the past year, with 7.7 percent saying their depression caused severe impairment.

6. In 2013, the last year for which there plete data, 1,258 youths were reported killed by firearms (equivalent to 1.71 per 100,000), and 6,104 suffered nonfatal firearm injuries (8.29 per 100,000). Broken out by subgroups, the rate of nonfatal firearm injury was 1.68 per 100,000 for white youths, 5.3 per 100,000 for Hispanic youths, and 24.67 per 100,000 for black youths.

7. According to the FBI’s National Crime Information Center, only 332 stranger abductions were reported last year; since 2007, the number of stranger abductions has ranged between 200 and 520.