English: Evolution of the enslaved population of the United States as a percentage of the population of each state, based on official US Census figures. States are listed by 1860 slavery rate (in descending order). Note that data for future West Virginia counties are disaggregated from Virginia data.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.