Of those, 29 percent were index (serious) offenses including violent index crimes and property offenses. The total juvenile arrest rate was 114 arrests per 1,000 juveniles between the ages of 10 and 17. The five most common charges against juveniles related to larceny-theft, disorderly conduct, assault, malicious mischief, and drug abuse violations. These figures represent a 1-percent decrease over 1991 juvenile crime rates, and a continuation of a decade-long decline of 10 percent since 1983 (the juvenile population decreased by 17 percent during the same time period). While total arrests for violent index offenses fell, arrests for murder and rape rose by several points, as did arrests for weapons offenses.