According to a December 2007 survey of prisoners from the U.S. Bureau of Justice Statistics, five TDCJ units, Allred Unit, Clemens Unit, Coffield Unit, Estelle Unit, and Mountain View Unit, were among those in the United States with the highest numbers of reported prison rape cases in 2006. In 2007, the TDCJ reported a total of 234 reported sexual assaults in its prisons. Michelle Lyons, the TDCJ spokesperson, said, "The actual reports we have are not consistent with the results in the survey, but because it's anonymous, there's no way for us to verify that additional number."