Hi, my group is about 25 mins away, around 19 miles each way. Yes, it is a pain, add an hour onto each time you go out promoting, no quick nipping out to do a few. It's an area I don't live in so I don't know the shops, facilities, schools etc so no rapport with people which I have in my own town.
I am not looking forward to winter setting in as we are very rural and we have to open group every week.
They are all things to consider. I have had my group since January and I wouldn't change it but I really wish I had one local!
As as for historical figures, yes you can get them. Ask to see past plans for success books, these are where we keep our figures, although I'm not sure you would see these in detail but i would think you would get an idea of numbers.
Hope this helps.