Data from: Introducing ORCID

ORCID wasn't intended as a massive longitudinal survey of the global
population of scientists, but with 3 million profiles and growing, it is
becoming just that. So far a quarter of those researchers have voluntarily
added personal information to their public ORCID profiles including the
years, locations, and descriptions of their education and employment
histories. As this voluntary sampling grows, the demographic and migration
patterns of the scientific workforce is coming into focus. The biases are
also apparent: ORCID users skew young, and certain countries are over- and
underrepresented. The code for processing and analyzing the raw profile
data are offered here to help researchers explore ORCID, the largest open
repository of scientific careers. [NOTE: further context for this data
package is provided in Bohannon (2017) 'Restless Minds' at
http://dx.doi.org/10.1126/science.356.6339.690].