As of 2005, about 500 in every 100,000 Americans were in prison, a rate of incarceration higher than anywhere else in the world (Wakefield and Uggen 2010).

A shekara ta 2005, kimanin 500 a cikin 100,000 Amurkawa suka kasance a kurkuku, yawan laifin kisa a ko'ina a duniya (Wakefield and Uggen 2010) .
