Their likelihood of rearrest only drops back to average levels after six years, the number-crunchers found.

这些同数字打交道的技术人员发现，6年后，他们再次被逮捕可能性才有可能降至平均水平。

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Even more shocking is the fact that the number and rate of imprisonment have more than doubled over the past twenty years, and recidivism — that is the rate for rearrest — is more than 60 percent.

更让人吃惊的事实是监禁的数目和比例在过去的二十年中翻了一番还有余，以及累犯率——即再次拘押的比例——为百分之六十强。

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