In 1986, the University of Michigan's Naked Mile celebrated the last day of class with a group streak across campus along an approximate one-mile path. At the height of its popularity in the late 1990s, between 500 and 800 students participated, including several hundred females. Over 1,400 students participated one year and well over one thousand during another year. However, due to enforcement of public indecency laws and pressure from administration officials concerned about increasing spectator crowds and videotaping, participation declined. By 2001, a mere 24 students participated, signaling the effective end of the Naked Mile. Students were warned by college administrators that streakers would be arrested and required to register as sex offenders for life under Megan's Law.