How to Judge the Rarity of a Listener

So i've taken a collection of people's tweets so and we have listeners names and where they're from. I decided to go two episodes back because it takes a couple of weeks for allfor everybody to listen to our episodes, which is always funny to me. So i collected up a bunch most of them er i figured would be rare. Some of them i just put in there to try and add some contact, like the first two,. cause i was like them, right? So casey with a k, wrote in from new zealand. O so this is that, this is the lowest er. This is like number one on the list. These are going in a sending order