Figure BEH1: Percentage of 8th-, 10th-, and 12th-grade students who reported smoking cigarettes daily over the past 30 days by grade, 1980–2007
SOURCE: National Institutes of Health, National Institute on Drug Abuse, Monitoring the Future Survey.
Figure BEH2: Percentage of 8th-, 10th-, and 12th-graders who reported having five or more alcoholic beverages in a row in the past 2 weeks by grade, 1980–2007
SOURCE: National Institutes of Health, National Institute on Drug Abuse, Monitoring the Future Survey.
Figure BEH3: Percentage of 8th-, 10th-, and 12th-grade students who have used illicit drugs in the previous 30 days by grade, 1980–2007
NOTE: Use of "any illicit drug" includes any use of marijuana, LSD, other hallucinogens, crack, other cocaine, or heroin, or any use of other narcotics, amphetamines, barbiturates, or tranquilizers not under a doctor's orders. For 8th and 10th-graders, the use of other narcotics and barbiturates has been excluded because these younger respondents appear to overreport use (perhaps because they include the use of nonprescription drugs in their responses).
SOURCE: National Institutes of Health, National Institute on Drug Abuse, Monitoring the Future Survey.
Figure BEH4: Percentage of high school students who reported ever having had sexual intercourse by gender and selected grades, selected years 1991–2005
NOTE: Students were asked, "Have you ever had sexual intercourse?" Data are collected biennially.
SOURCE: Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Youth Risk Behavior Surveillance System.
Figure BEH5: Rate of serious crimes by youth perpetrators ages 12–17, 1980–2005
NOTE: The offending rate is the ratio of the number or crimes [aggravated assault, rape, and robbery, i.e., stealing by force or threat of violence] reported to the National Crime Victimization Survey that involved at least one offender perceived by the victim to be 12-17 years of age, plus the number of homicides reported to the police that involved at least one juvenile offender, to the number of juveniles in the population. Because of changes made in the victimization survey, data prior to 1992 are adjusted to make them comparable with data collected under the redesigned methodology. The 2005 data were collected during the calendar year and include some incidents that occurred during the previous year. Data for previous years are of victimizations experienced in the calendar year. This was done because the full data for 2005 were not yet available. Analyses comparing these data show only a small difference between the two methods.
SOURCE: U.S. Department of Justice, Bureau of Justice Statistics, National Crime Victimization Survey. Federal Bureau of Investigation, Uniform Crime Reporting Program, Supplementary Homicide Reports. Youth Risk Behavior Surveillance System.