I have a dataset where I calculated incidence by age groups using the following command:

stset censor, failure(event==1) exit(end) enter(start) id(id) scale(365.25) origin(dob)
stsplit agegroup, at(0(10) 80)
strate agegroup, per(100000)

I also need the distribution of people in _D (number of events) and _Y (person-years)
How do I get the number of people in the group instead of the person-years when using strate in Stata?

Thank you very much