Average count of events per user including users that never triggered the event?

In my app, I have an “ad_click” event. When I try to plot average events per user I see that I have 2 events/user on average:

But I know that only minority of users trigger this event, most users don’t click on ads. Here is percentage of active users that triggered it:

So this means that, if we count in users that never triggered the event, the number of events per user will be much less than 2 and even less than 1, probably around 0.1-0.2.

How do I make this chart?