"Driver Involvement Rates per 100,000 Licensed Drivers by Age Group, Sex, and Crash Severity", per the linked article.
The metric is useless in the first place, this is "per licensed drivers", not "per driver-miles".
It's a certainty that men drive more miles than women, primarily for job purposes. The NHTSA doesn't give enough data to determine this. My guess is that it's split almost exactly evenly per-mile, but who knows, without the data?