High school reunions and watching the obits

My high school classmates recently got together for a 35th anniversary reunion in Lake County, Illinois. I did not attend, but was struck by the conversation in the class group on Facebook about deceased schoolmates.
Now that we’re all over 50, the pace of deaths seems to be accelerating. Heart disease and cancer are more likely to take their toll as we age.
A memorial at the reunion included the senior year photos of 15 dead classmates. But some group members mentioned a couple more to add to the list.
So, about 6% of my class of 305 graduates are now deceased. The number could be higher because quite a few classmates (17, at one point) could not be located by the reunion organizers.