I'm working on a brand new website and trying to figure out how to decide the oldest version of IE to support since I have absolutely no user information to look at. Most of the answers I come across for questions like this tell the person to look at their analytics. But in this case, there aren't any. Until the site is built and launched all I have to run on are general statistics about browser usage:
But this is from every demographic out there. In my particular case, my users have to make at least $50,000 a year. Unfortunately, Google doesn't help me with a search looking for a correlation between income and IE browser version. I suspect people who make about that much are on newer versions of IE. But I have absolutely no way of proving this until I have users.
So, how do I make decisions like this for users who don't even exist?