How Many Researchers: The FY 2023 Cumulative Investigator Rate 

March 6, 2024

We are pleased to share our annual snapshot of how many researchers NIH supports. Our cumulative investigator rate is an NIH-wide person-based metric, calculated as the number of unique principal investigators designated on an NIH research project grant award, divided by the number of unique principal investigators who were designated on applications over a five-year period.

How Many Researchers: The Positive Trend Continued into FY 2020

May 17, 2021

Now that fiscal year (FY) 2020 grants data are available in the NIH Data Book, let’s see how many unique scientists sought support on NIH research project grants. The “cumulative investigator rate,” a person-based metric that looks at the likelihood that unique investigators are funded over a five-year window, has moved in a positive direction in recent years, and we were pleased to see the trend mostly continue into FY 2020.

How Many Researchers: Positive Trends Continue in FY 2019

February 25, 2020

As we continue to explore the question of how many researchers NIH funds, we have been observing a positive trend over the last few years where the number of unique scientists seeking support on NIH research project grants (RPGs) is stabilizing along with a commensurate rise in the corresponding NIH cumulative investigator rate. Now with fiscal year (FY) 2019 data available on the NIH Data Book, let’s see if this trend continued.