Mainstreet kvestion

[1980 Something Spaceguy]

You know how another former villager shows up in your mainstreet after one has recently left?

Let's say I have 5 more to cycle. Someone moves out, a former villager shows up in main. But once someone moves in, in my experience, another former villager shows up. Does that mean I have 4 more to cycle or 3 more?

I need to know this because I need to get Kabuki back.

 

[cIementine]

tbh, I just counted how many villagers moved when I lost Diana, and when I got to 16, she disappeared from main street.