But, you've got to remember a couple things. One is that there is no schedule for events like this. Other than all drinking St. Louis water :), they are independent of each other. So, while deaths sometimes cluster they sometimes spread out and seem rare. The other is that, as we age, time seems to speed up. So, events appear to be happening at a more rapid clip.
Another factor is how large your circle of family, friends, and acquaintances is. The bigger the circle the more deaths. A hermit doesn't see any deaths. If it troubles you, decrease that circle. Disengage from some folks of the "old church", for example.
As they say, this too shall pass!