During the past 25 years, Oklahoma has posted the 16th highest number of exonerations in the nation, compared with its ranking of between 25th and 30th in total population during that period.

Oklahoma had 28 exonerations, according to data that a research group collected from the National Registry of Exonerations.

This interactive map tracks the number of exonerations by state from 1989 through Oct. 20, 2014, as well as the amount of time that wrongfully convicted people have spent behind bars. The data also shows the number of exonerees who were on death row at the time of exoneration.

The map was prepared by research group Safer.America.com, with assistance from a San Diego criminal defense firm, George H. Ramos Jr. & Associates.

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