The number of prisoners in these facilities has since risen to extraordinary levels. America now holds at least twenty-five thousand inmates in isolation in supermax prisons. An additional fifty to eighty thousand are kept in restrictive segregation units, many of them in isolation, too, although the government does not release these figures. By 1999, the practice had grown to the point that Arizona, Colorado, Maine, Nebraska, Nevada, Rhode Island, and Virginia kept between five and eight per cent of their prison population in isolation, and, by 2003, New York had joined them as well. Mississippi alone held eighteen hundred prisoners in supermax—twelve per cent of its prisoners over all. At the same time, other states had just a tiny fraction of their inmates in solitary confinement. In 1999, for example, Indiana had eighty-five supermax beds; Georgia had only ten. Neither of these two states can be described as being soft on crime.