"The researchers studied more than 25,000 convictions of public officials for violation of federal corruption laws between 1976 and 2008"
LOL This 'report' or list is pure crap. It is bassackwards. They were too dense to realize that 'convictions' means that at least someone is paying attention. It is the States with the least convictions would be more worthy of study.
But, whatever. Another day another list, or survey, or report about something from an unknown group with an unknown agenda.