For my closest family & friends and my dearest colleagues
- all in all ca. 15-20 people.
Maybe I'd also cry (though not with close as much intensity as for the above)
for some great person I didn't know personally, but during my life
(my conscious life - when Lennon died for example I was few months old)
no such person died yet (or I had other troubles at the time? didn't hear about it?).