It's an insane amount. I've worked on writing helpdesk software for almost a decade now, and from time to time we are asked by our customers to run some analysis on their data; password resets are usually from 25% to 50% of the total requests to the system.
I work in the identity management space of a household name financial institution. We have varying levels of outages, but the top priority one is if people are unable to reset passwords through our UI. It's an absolute nightmare.
