According to a motor vehicle occupant survey conducted by NHTSA in 2000, 81 percent of occupants reported that they favored mandatory helmet-use laws for motorcyclists. A 2004 report by the Advocates for Highway and Auto Safety found that an overwhelming majority (80 percent) of Americans were in favor of state laws requiring all motorcyclists to wear helmets. A 2005 survey by Lansing-based EPIC-MRA found that seven out of ten Michigan registered voters said motorcycle riders should be required to wear helmets.