Why would you think so?
I don't know for sure, but some possible reasons:
- People had more time at home to prepare and submit applications.
- A worldwide health crisis encouraged people to search for jobs in the medical field.
- The poor economy caused people to look for more stable career paths.
- People aren't eager to enter the job market right out of undergrad with how bad unemployment is right now.
That's kind of dumb though... It's hard to imagine that people not originally set on a medical career would be like "oh, a bad economy, let's be a doctor" all of a sudden.