A comment to my previous post asked about the size distribution for R01s for investigators with a single R01 grant. This distribution is shown below:
The median is $371K (total costs) with an interquartile range of ($464K - $318K) = $146K. This distribution is very similar to that for all R01s for FY2013 presented in an earlier post. Approximately 1/3 of the grants fall outside of a Gaussian distribution centered around the mode of the distribution. These represent grants that are outside of the range determined by the modular cap.
Here is a plot of the cumulative fraction of total R01 funding going to PIs with single R01 grants as a function of R01 size from smallest to largest:
Grants up to the modular cap limit of approximately $375K total costs account for approximately 55% of the total R01 expenditure for PIs with single R01 grants.