What percentage of persons in a motor vehicle or public place were stopped by police and searched or frisked?

In 2011, about three percent of drivers in traffic stops and 19 percent of persons involved in street stops were searched or frisked by police. White drivers involved in traffic stops were searched at lower rates than black and Hispanic drivers. During both traffic and street stops, the majority of persons who were searched or frisked did not believe the police had a legitimate reason for the search