Scientific Data 3:160030 doi:10.1038/sdata.2016.30 (2016); Published 10 May 2016; Updated 31 Jan 2017

The original version of this Data Descriptor contained a typographical error in the spelling of the author Douglas B. Rusch, which was incorrectly given as Douglas Rush. This has now been corrected in the PDF and HTML versions of the Data Descriptor.