Blaine Bettinger, in his Blog The Genetic Genealogist, gives us a July 2016 update to the estimates of the extent of DNA shared by people of various relationships. This "Shared cM Project" originally released data in May 2015, and this is the first update since then.
You need to have some understanding of DNA testing and results interpretation for this to have any meaning. Scroll down a couple screens to see a nicely presented summary chart, and scroll to the end of the article for a link to a printable PDF document.
Update to the Shared cM Project – The Genetic Genealogist:
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