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This figure shows how the age distributions of (A) the number of AAMC clinical-science PIs, (B) the number of AAMC basic-science PIs, and (C) the number of NIH R01 grantees have changed for years of analysis between 1980 and 2014. The raw data are averaged over a running window 5 y wide. The blue lines are the 5 earliest years (1980–1984), whereas the green lines are the 5 most recent years (2010–2014). These are the raw data that are used for much of our analysis.
